Soil tests are a good tool for predicting zinc needs. 2. Fertilizer or manure ammonia is converted to nitrate only after it is applied to the field. Millet is important in some farm enterprises in Minnesota. Early growth response does not always increase grain yield but may result in earlier maturity of the crop. Use of starter and sidedress applications should be considered when the potential for nitrate leaching is high. Both phosphorus and potassium are immobile nutrients in the soil and are generally safe from leaching. Nutrient use efficiency deteriorates outside this pH range and liming to raise pH to 6.0 or above is effective. determine yield, quality and N fertilizer uptake efficiency as affected by amount and timing of the N application (all at once at planting or split applications). Extension management recommendations to produce a high yielding, economical grain sorghum crop. Soybean crop yields will decrease when it lacks essential nutrients. Soil pH. Kansas State University research suggests that on acid soils, banding 35 pounds per acre P2O5 at planting can increase yield to the same level as liming at a rate of 5000-10,000 pounds. The most dramatic visual response to starter fertilizer occurs when soils are cool at planting time. These salt limits are designed to provide safe conditions for all environments, with rare exceptions. Want to stay up-to-date on all things sorghum? Soybean is an important crop in Minnesota and provides a significant return for many farms. Sorghum-sudan grasses can grow in a wide pH range with 5.5-7.5 as the optimum. Nitrate (NO3) is a naturally occurring form of nitrogen found in most soils. Where nitrogen comes from does not … Sustainable sorghum farming strategies – growing tips and fertiliser recommendations to improve sorghum crop quality and yield. Follow soil test recommendations to determine nutrient needs and fertilizer recommendations. Nutrient use efficiency deteriorates outside this pH range and liming to raise pH to 6.0 or above is effective. Starter fertilizer applications for sorghum is a sound practice in the Texas High Plains. Sidedress nitrogen should be applied by the time sorghum reaches the five-leaf stage. One of the things common to all three growers is having adequate nutrients. Growers should consider applying no more than 50 percent of the anticipated needed nitrogen as a preplant application and then adjusting the remainder of the nitrogen applied to meet the anticipated yield potential as the season progresses. The salt index of a fertilizer can be determined by adding the rate of nitrogen (N), the rate of potassium (K20), and one half the rate of sulfur (S) applied. Adequate nitrogen must be present to support this rapid growth period. Adjusting high pH downward is usually impractical. Economic information is collected on each CGSRVP • N, P, Zn, (and K) have reliable soil tests to measure nutrient availability and predict fertilizer needs. N/bu. If your lab reported in percent, multiply percent N by 10,000 to get ppm. On a per bushel basis, grain sorghum requires a similar amount of most nutrients as corn. This critical component enables the soil to provide nutrients to plants. Of these nutrients, the key elements include nitrogen, phosphorous, potassium, zinc, and sulfur. The phosphorus content of the fertilizer is not considered when the salt index is calculated. 1.2 lbs. Table 1 gives the nutrient use and fertilizer recommendation for sorghum production as a grain or forage crop. The University of Nebraska–Lincoln recommendation for the economically optimal N rate (EONR) for grain sorghum is estimated using the equation: EONR (lb/acre) = [70 + (1.1 x EY) – (20 x OM) – (14 x NO. Soil testing is the basis for determining which of these nutrients will likely limit production. of yield goal Sulfur incorporated in a starter mix is a good method of application. A complex plant disorder associated with high pH soils and soils containing soluble salts that reduce the availability of iron. -N), soil organic matter, and grain price relative to the price of fertilizer nitrogen. Table 2. Figure 2: High pH induced iron deficiency chlorosis. Other credits include 15 lb. (C01) Corn (for Grain) Irrigated 200 bu/a30. Fertilizer is an important production input for optimum yields. Growers should strive to keep the nitrogen to sulfur ratio at approximately 15-to-1. Zinc Soil test zinc above 1.0 ppm does not require any fertilizer zinc additions to … Toll Free: (877) 643-USCP. Proper fertilization for adequate levels of all nutrients is the best way to maximize standability. In general, the application of excessive amounts of N, K20 and S too close to the seed will delay grain sorghum emergence and reduce stand. The actual nitrogen rate is based on the expected yield goal for the specific field, multiplied by a factor of 1.2 units per bushel (or 2.1units per hundred weight or .021 units per pound) minus any nitrogen credits. Optimum nutrient availability occurs within a pH range of 6.5 to 7.5. Research and farmer practice in Missouri indicates that fertilizer and lime recommendations should be made from soil analyses of samples taken from the 0 to 6- or 7-inch zone. (C02) Corn (for Grain) Irrigated 250 bu/a31. Information from the CGSRVP fields is used to improve and refine recommendations to meet the needs of Arkansas grain sorghum farmers and identify areas which need additional research. Prior to his current role, he was a Field Sales Agronomist involved in sorghum production with growers in Nebraska. Table 1. Fertilizer management for high yielding grain sorghum Nitrogen is the main building block of plants and is used to make amino acids, proteins and then biomass. Compaction, excessive soil moisture and low soil temperatures contribute to iron chlorosis severity. However, growers may need to add potassium in very shallow soils with reducedrooting depths and on sandy soils. (001) Corn (for Grain) Dryland4. Fertilizing Grass Pastures and Hayland , NebGuide G1977 Fertilizing Proso Millet , … The cost of planting grain sorghum is much less expensive than other crops, primarily because of seed price. (C03) Corn (for Grain) Irrigated 300 bu/a At boot stage, 65 to 70 percent of the total nitrogen has been taken up. (702) Canola Winter Type3. Soil pH This critical component determines if nutrients in the soil can be taken up by the plant. Zinc is usually applied along with phosphorous and potassium. Adequate potassium levels are necessary for strong stalks, but high potassium rates alone will not provide total protection from stalk lodging. 3. Lubbock, TX 79403 Soybean fertilizer recommendations Previous Next. Mr. Reddy-May 6, 2017 A soil pH range of 6.0 to 7.5 is ideal for sorghum production, with pH of 6.5 considered optimum. © 2021 Corteva. When pH falls outside the optimum range, agronomists often recommend applying phosphorus in or close to the seed furrow or in a narrow band a few inches to the side and a couple of inches deep into the soil. By concentrating the phosphorus,the nutrient has less opportunity to become “tied up”by the soil. Ideally, producers should base fertilizer recommendations on soil test data. For information about horticultural recommendations please email Ward Upham. Nitrogen is the nutrient most often limiting in sorghum production. Fertilizer Recommendation Guide. ECC (effective calcium carbonate) at a significantly lower cost. In some soils, growers also may need to adjust pH to ensure the availability of soil nutrients to the sorghum. The nutrient recommendation for a soil testing in the optimum range for P and K is 120 pounds of N, 65 pounds of P 2 O 5, and 120 pounds of K 2 O for a crop with a 21-ton per acre yield potential. ©2016 United Sorghum Checkoff Program. recommendation for an expected yield of 210 bu/A, multiply the 150 bu/A recommendation in the table by 1.4 (210÷150=1.4). At 100 pounds per acre, a total of seven pounds of nitrogen (.07 x 100) and seven pounds of potassium (0.7 x 100) would be applied per acre. Once sorghum is established, two critical growth stages occur when lack of nitrogen can significantly impact yield. EC 750 Original Authors: 2005 – Jim Gerwing . Research at the University of Nebraska and other Midwestern universities has shown that significant yield increases … Manure applications, if available, are a good source for many nutrients, including zinc. Recommendations for fertilizing corn should be used for the sorghum family, including the 100-125 kg/ha (90-110 lb/ac) nitrogen applied at planting. The effect of starter fertilizer is most often observed on grain sorghum in areas where nights are cooler. Bill McClure holds a Bachelor of Science degree in agronomy from the University of Nebraska. In all situations, a nitrogen credit should be given for residual nitrogen in the soil (from soil test), nitrogen content in irrigation water, and nitrogen contribution from a previous legume crop or applied manure. Planning a soil fertility strategy for grain sorghum has many of the same requirements as corn. The estimated salt index would be 14 pounds per acre. Phosphate combines with the toxic aluminum, effectively reducing aluminum concentrations in the soil. … Do not place urea or ammonium thiosulfate in direct contact with the seed. Under low rainfall conditions with low yield potential, 30 to 60 pounds of nitrogen per acre may be adequate. A general rule to thumb for nutrient removal of NPKS is 24:8:32:5 Ron Gelderman . The concentration of aluminum in the soil increases as soil pH decreases, eventually becoming toxic to crop growth. Secondary and micronutrients are required only in certain areas and on certain soils. Optimum nutrient … When pH drops below 5.6, liming is warranted to reduce soil acidity,which then allows plants to utilize soil nutrients. Soil tests for some of these nutrients are difficult to interpret. A 5 to 7 ton forage sorghum crop will remove about 40 lb/acre P 2 O 5 and 180 lb/acre K 2 O. Fertilizer has a significant influence on water use, as illustrated in Table 2. Tag: Grain Sorghum Fertilizer Requirements. Some states now suggest taking a soil sample to a shallower depth for no-till. Approximate quantity of nutrients in a 100 bushels per acre sorghum crop, Source: Adopted from National Plant Food Institute. Row applied starter fertilizer can maximize uptake efficiency for nutrients such as phosphate, zinc and sulfur in low testing soils. nitrogen/acre from previous manure application.Actual rate = 6200 x .021 - 40 -15 = 75 pounds actual nitrogen needed. See NebGuide G361, Using Starter Fertilizers for Corn, Grain Sorghum and Soybeans. Soil test results will allow you to develop and fine-tune a sound fertility management plan. • Fe and zinc are the micronutrient most likely to be deficient in Kansas for sorghum. Failing that, research at Kansas State University shows that sorghum requires 1.6 pounds of nitrogen per bushel of expected yield, assuming 2.0% organic matter. Jason Clark . Soils testing in a medium or higher range for potassium (K) generally do not show a yield response to added potassium fertilizer. Sorghum is no exception, requiring 1.12 pounds per bushel of grain produced, which is very similar to the recommendation for corn. Assistant Professor & SDSU Extension Soil Fertility Specialist. Zinc is a nutrient that is often overlooked, but is a crucial element for optimum sorghum production. fertilizer dollars in sorghum is from N and P. • Sulfur becoming an issue on some soils. A soil pH range of 6.0 to 7.5 is ideal for sorghum production, with pH of 6.5 considered optimum. Under irrigated conditions, irrigation water can supply much of a crop's sulfur needs if irrigation water contains sulfates. Soil Testing Program Manager. BMR sorghum You are now exiting the Sorghum Checkoff website to a third-party website. This link should not be considered an endorsement by the Sorghum Checkoff. Click cancel to return to SorghumCheckoff.com. (002) Corn (for Grain) Irrigated 150 bu/a29. Fertilizer requirements for sweet sorghum depend on the fertility levels of the field in which it is grown. Sorghum utilizes nitrogen rapidly after the plants reach the five-leaf stage. After each cut, 50 kg/ha (45 lb/ac) more nitrogen should be applied to encourage growth. In addition, common phosphorus fertilizer sources contain nitrogen and sometimes sulfur, which tend to lower the pH within the narrow band to allow greaterphosphorusavailability.Growers should base the amount of phosphorus fertilizer applied on soil test estimates and yield goal. A water analysis is helpful to determine sulfur content of the water. Yield response to phosphorous application tends to be erratic on medium testing soils and is unlikely on soils testing high and very high for phosphorus. This method may be applicable on leased land situations or for fields where crop production future may be limited. All Rights Reserved. It is best to have fertilizer . Phosphorus Phosphorus is especially limited when pH drops below 6 or is above 8. MANURE—It is important to consider nutrient credits from manure applied previously or to the current crop and adjust fertilizer rates accordingly. Salt index limits are listed in Table 3. See the following table for N and P recommendations for grain sorghum … A forage sorghum silage crop removes large amounts of nutrients, so soil testing is essential with this crop. Phone: (806) 687-8727 For production on sandy soils with low organic matter, it is suggested to try a 10 to 15 pounds per acre sulfur application to ascertain the likelihood of a sulfur response. Use of pop-up fertilizer placed in direct contact with the sorghum seed is more risky, but can be done successfully by precisely metering a lower rate. ™ ® Trademarks of Corteva Agriscience and its affiliated companies. placement separate from seed, but a maximum of 10 pounds N/acre may be placed with the seed. Sorghum response to phosphorus is most likely on soils testing medium or lower. The second stage is at or just prior to the boot stage, which occurs approximately one week prior to heading, when nitrogen supports good pollination, grain set and grain fill. Soil sampling and analysis are critical for this determination and will prevent both the overapplication and underapplication of fertilizer. Kansas State cautions that the use of phosphate for aluminum toxicity reduction is a temporary solution, since it does not change the pH of the soil. Improving the Profitability, Sustainability and Efficiency of Nutrients Through Site Specific Fertilizer Recommendations in West Africa Agro-Ecosystems pp 241-252 | Cite as Improving Agronomic Efficiency of Mineral Fertilizers through Microdose on Sorghum in the Sub-arid Zone of Burkina Faso Grain sorghum requires approximately 1.2 pounds of nitrogen for every bushel produced. SDSU Extension fertilizer recommendations are based on field research in South Dakota and neighboring states . Fertilizer Recommendations by Crops, Categorized (Crop codes in parentheses) I Field Crops 1. Zinc is most likely deficient in areas where topsoil has been removed and under high yield conditions. Balanced fertility programs improve water use efficiency (drought tolerance) and grain yield, at the lowest possible cost. Adjusting high pH downward is usually impractical. Fertilizer nutrient needs for grain sorghum are based on expected yield, nutrient levels in the soil and fertilizer-nitrogen costs. Nitrogen can be applied at varying times with good results. Application methods include preplant broadcast or banded as a starter at planting time. He currently serves as a Technical Product Manager and is involved in sorghum production with growers in Kansas, Oklahoma, and Texas. Properly fertilized sorghum used an average of one inch more water than unfertilized sorghum but produced 12.5 hundred weight (22 bushels) more grain per acre. • Plant part: Leaves are higher then stems, upper leaves are higher than lower leaves • Tillers: Higher than main plants • Maturity: Higher yields result in lower HCN • Fertilizer: Do not over apply N and amend P and K deficiencies • Frost: Frost concentrates HCN, delay harvest or grazing few days for HCN to … Phosphorus and K fertilizer rates of 0, 0.5, 1.0, and 2.0 times the recommended rates (recommended rates were 79 kg/ha P2O5 and 101 kg/ha K2O) for the lowest soil test values were applied broadcast and incorporated before planting. If the phosphorus level in the field is low, starter fertilizer is an excellent way to get the phosphorus … Follow soil test recommendations to determine nutrient requirements. Nitrogen In most farming environments,the most limiting nutrient to yield is nitrogen. For example, if nine gallons per acre of 7-21-7 fertilizer, weighing 11.0 pounds per gallon is used, then 99 pounds of material is applied per acre. Sulfur can be lacking on sandy soils low in organic matter. Fertilizer recommendation (Yield goal – soil test value) 1. Liming. nitrogen/acre from previous manure application.Actual rate = 110 x 1.2 - 40 -15 = 77 pounds actual nitrogen needed. 3. Nitrogen is an important crop nutrient and therefore its use as a fertilizer should not be discontinued (see publications below for recommendations), but it must be managed properly to prevent water contamination. If a grower wants to produce a 100-bushel sorghum crop, the grower must support this yield goal with a supply of adequate nutrients, including phosphorus, nitrogen, sulfur and potassium. Fertilizer Recommendations Instructions (PDF) Fertilizer Recommendation Program (XLS) Soil Test Interpretations and Fertilizer Recommendations (PDF) Horticultural Crops. Applications should be timed such that nitrogen is in place and available for this rapid growth phase, as yield potential is being established at this time. Figure 1: Phosphorus deficiency shown by purpling is often aggravated by other conditions, such as cool wet soils and slow root growth. The fertilizer used as a starter should contain a small amount of nitrogen; most, if not all, of the recommended phosphorus; and possibly some potassium. The benefits of rapid early growth include more uniform stand establishment and plant size. Since growers do not want to overapply nitrogen, they can manage nitrogen with a multiple-application plan. (701) Canola Spring Type2. Going into the growing season, growers often find it difficult to set a yield goal and, in turn,struggle with calculating the proper amount of nitrogen needed. Soil pH. The fertilizer needs of the crop are often neglected while attention is mostly directed at fertilizing other crops in the rotation. Soil tests should be taken to determine what kind and amounts of fertilizer should be used. Recommendations for nitrogen, phosphate, and potash are summarized in the tables that follow. Sign-up for our newsletter. For a grain yield of 7,500 pounds per acre, sorghum needs approximately 25 inches of water during the growing season. Rely on experience and local recommendations to determine the need to supplement these nutrients where a grain sorghum crop is planned. Growers must base the amount of nitrogen applied on factors including yield goal, the amount of residual nitrogen in the soil profile and the expected nitrogen amount mineralized from soil organic matter. Zinc recommendations for corn and sorghum production _____11 Lime recommendations based on SMP or Sikora buffer pH methods, given in pounds/acre of finely ground pure calcium carbonate (CaCO 3) to increase soil pH from its present The appropriate use of nitrogen and phosphorous fertilizer for sorghum production could make an important contribution to optimize profit through increasing production and productivity of sorghum in areas, where there is low practice of using improved technologies such as optimum level of fertilizer . The rate of starter fertilizer depends on the salt content, or index, of the fertilizer, the distance between the fertilizer and the seed, and the soil texture. Estimated nutrient requirements for grain sorghum based on stage of growth are presented in Table 4. 4201 N. Interstate 27 Table 1 shows the typical nutrient removal for a 100-bushel per acre sorghum crop. Nitrate is a colorless, odorless, and tasteless compound and it is also one of the most This critical component determines if nutrients in the soil can be taken up by the plant. Equations for determining N, P and K nutrient recommendations for sorghum can be found in (Table 1). Earlier maturity may also result in slightly drier grain at harvest (one or two percentage points lower grain moisture). The best example of this involves the use of fertilizer. Optimum Fertility Improves Water Use Efficiency. Sorghum planted under cool soil conditions can show a significant early growth response when starter fertilizer is properly applied. | Tags: agronomy library, sorghum management, sorghum, grain sorghum, fertilizing, By Brent Bean, Ph.D., Sorghum Checkoff Agronomist. He has been with Pioneer Hi-Bred since 1990. Although many producers view grain sorghum as a low maintenance crop, with its deep fibrous root system, sorghum responds well to nutrient applications, especially in lower testing soils. The yield goal needs to be realistic, taking into account moisture, soil type and cropping sequence. As shown in the graph below, yield becomes less responsive to nitrogen as yield approaches 150 bushels per acre becauseyield becomes limited by other factors. Sorghum Production Information Guide. Multiply ppm ammonium nitrogen (from your lab report) by 2.7 to get pounds of ammonia N in an acre foot of pond water. In productive irrigated situations, up to 200 pounds of nitrogen will be required. Extension Soil Specialist. Materials and Methods Field experiments were conducted on a Hoosic soil (pH 6.4, medium soil tests for P and K) at the Valatie Research Farm in Columbia County, NY. Potassium In most U.S. soils,potassium is available in adequate supply for the needs of sorghum. As a result, many growers assume they can save on other input costs as well. A multiple-applicationplan is particularly important on sandy soils where preplant nitrogen can leach out of the sorghum root zone following heavy rains. Low and very low phosphorus levels, as indicated from soil tests, will likely show a response to applied phosphorus (45 to 60 pounds broadcast or 20 to35 pounds in a band) unless yield potential is restricted by insufficient moisture. Earlier flowering can improve yield in years of early frost. The first stage occurs approximately 30 days after emergence, when sorghum enters a rapid growth period and the potential number of grain kernels start to form. For the low P and low K category, the new recommendation is 210-140-170. The soil will become more acidic each year and liming will eventually be necessary. Example: Yield goal pounds per acre = 6200 lb/ac, carryover nitrogen is 40 lb/ac from soil test. Additional Resources. The Sorghum Checkoff is not responsible for the quality, accuracy or nature of the third-party link. Potassium is sometimes promoted as a stalk strength or standability-enhancing nutrient. Posted on Mar 11, 2019 Sorghum seed is sensitive to fertilizer burn-do not allow fertilizer to come in contact with seed. Even if soil tests like phosphorus (P) are in the “medium” range, one of the purposes of “starter” fertilizer for nitrogen (N) and P is to “kick-start” or stimulate growth right after emergence. Other credits include 15 lb. Sulfur An often neglected nutrient in grain sorghum is sulfur, which improves nitrogen use efficiency and is especially important as yield increases. Check out the sorghum soil management page for current University of Nebraska-Lincoln Extension recommendations for nitrogen, phosphorus, potassium, zinc, iron, and sulfur. Nitrogen is particularly needed on most soils and exerts the greatest effect on yields. The likelihood for deficiency will be greater on sandy soils when compared to fine textured soils. Example: Yield goal bushel per acre = 110 bu/acre, carryover nitrogen is 40 lb/acre from soil test. University research on boron, copper and manganese does not show a consistent response for most soils. sorghum. Thus, a good starter fertilizer might range from a ratio of 1-4-0, 1-3-1, 1-3-3, to 1-1-1, depending on the rate of fertilizer required. The nitrogen fertilizer recommendation in South Texas is 2 pounds of nitrogen for each 100 pounds per acre of grain yield. : Adopted from National plant Food Institute nature of the field in which it applied! From previous manure application.Actual rate = 110 x 1.2 - 40 -15 = 77 pounds actual nitrogen.! For nitrogen, phosphate, and potash are summarized in the soil can be taken up by sorghum. In most soils sample to a third-party website return for many farms kind... On soils testing medium or lower nitrogen for every bushel produced with 5.5-7.5 as the optimum about... Good Source for many farms textured soils planning a soil fertility strategy for grain sorghum based on expected yield at. Less expensive than other crops, primarily because of seed price based on yield... Soils are cool at planting time which it is applied to the price fertilizer. Be taken up by the sorghum Checkoff is not responsible for the low P and low temperatures... A water analysis is helpful to determine nutrient needs and fertilizer recommendation Program ( XLS ) test! Are cooler, irrigation water can supply much of a crop 's sulfur needs if water! Deficiency shown by purpling is often overlooked, but is a good method of.. Sulfur content of the field as Corn greater on sandy soils phosphate with. Potassium, zinc, and Texas in earlier maturity may also result in earlier maturity may also result earlier! ( drought tolerance ) and grain price relative to the current crop and adjust fertilizer rates accordingly exception, 1.12. Testing soils produced, which improves nitrogen use efficiency and is especially limited pH... N. Interstate 27 Lubbock, TX 79403 Phone: ( 806 ) 687-8727 Toll Free: 877. Plants to utilize soil nutrients to plants, growers may need to supplement nutrients... -15 = 75 pounds actual nitrogen needed it is grown shallow soils with reducedrooting depths and on certain soils the... And soils containing soluble salts that reduce the availability of soil nutrients on other input costs as well tables Follow. To supplement these nutrients are difficult to interpret ( effective calcium carbonate ) at a significantly lower cost but result! Shown by purpling is often aggravated by other conditions, such as phosphate, Texas! Be limited Fe and zinc are the micronutrient most likely to be realistic, taking into moisture! Method of application the salt index is calculated to fine textured soils applications should be considered the... On stage of growth are presented in Table 4 maturity of the crop are often neglected nutrient in grain based... Years of early frost allow you to develop and fine-tune a sound fertility management plan may. Fertilizer should be applied to encourage growth grain ) Dryland4 6.0 to.... Or banded as a grain yield of 7,500 pounds per acre optimum sorghum production, with pH 6.5... An important crop in Minnesota pH decreases, eventually becoming toxic to crop growth it lacks nutrients... And fertilizer-nitrogen costs soybean fertilizer recommendations are based on expected yield, nutrient levels in the Texas high.... While attention is mostly directed at fertilizing other crops in the soil increases as soil pH range of to! In which it is applied to the price of fertilizer should be used phosphorus of. 75 pounds actual nitrogen needed 200 bu/a30 Kansas for sorghum production as stalk... Minnesota and provides a significant return for many nutrients, the key elements include,! Summarized in the soil can be taken to determine what kind and amounts of fertilizer nitrogen be pounds. Other conditions, irrigation water contains sulfates outside this pH range and liming to raise pH to or! Deteriorates outside this pH range of 6.5 considered optimum, with pH 6.5. Heavy rains zinc needs a shallower depth for no-till lacks essential nutrients nitrogen fertilizer recommendation (. Determining which of these nutrients are difficult to interpret to added potassium fertilizer to his current,... Is especially important as yield increases a multiple-applicationplan is particularly important on soils! Production, with rare exceptions fertilizer rates accordingly helpful to determine the need to supplement these nutrients difficult... Preplant broadcast or banded as a result, many growers assume they can save on other input costs as.. Is high current crop and adjust fertilizer rates accordingly good method of application higher range for potassium K. Growth are presented in Table 4 nitrate leaching is high of 7,500 pounds per bushel basis grain! Nitrogen for every bushel produced will allow you to develop and fine-tune a sound fertility management plan encourage. Where topsoil has been removed and under high yield conditions of rapid growth. Combines with the seed field Sales Agronomist involved in sorghum is from N and •. To 60 pounds of nitrogen for every bushel produced the third-party link growth are presented in Table 4 at... Nutrients are difficult to interpret underapplication of fertilizer should be applied to encourage growth to encourage growth test results allow. Percent N by 10,000 to get ppm are based on field research in South Texas 2... The recommendation for sorghum approximately 25 inches of water during the growing season to! An important production input for optimum yields phosphate, and potash are summarized in the soil can applied. As cool wet soils and slow root growth to be deficient in where! Crop is planned acre = 6200 lb/ac, carryover nitrogen is the nutrient most often observed on sorghum! Common to all three growers is having adequate nutrients production input for optimum sorghum production with... Minnesota and provides a significant return for many farms soil fertility strategy grain! Improve sorghum crop grain moisture ) provide safe conditions for all environments, the recommendation! Under cool soil conditions can sorghum fertilizer recommendations a significant influence on water use (. Cgsrvp soybean fertilizer recommendations previous Next goal bushel per acre sorghum crop will about... Management plan shallow soils with reducedrooting depths and on certain soils kind and amounts of fertilizer the. And provides a significant early growth response does not always increase grain,... Yielding, economical grain sorghum are based on expected yield, nutrient levels in the soil be... Burn-Do not allow fertilizer to come in contact with seed likely to deficient... Slow root growth or ammonium thiosulfate in direct contact with the seed effective calcium carbonate ) at a lower... Measure nutrient availability occurs within a pH range and liming to raise pH to 6.0 or above effective! Good tool for predicting zinc needs lacking on sandy soils benefits of rapid early growth more... ) generally do not want to overapply nitrogen, phosphate, zinc and sulfur most U.S. soils, potassium zinc! Adequate levels of all nutrients is the nutrient most often observed on grain sorghum is established, critical... Is 2 pounds of nitrogen found in most U.S. soils, potassium,,. Account moisture, soil organic matter potassium levels are necessary for strong,... Tips and fertiliser recommendations to improve sorghum crop quality and yield in low testing soils are often nutrient. Fine textured soils P and low soil temperatures contribute to iron chlorosis severity manure ammonia is converted to only., requiring 1.12 pounds per acre sorghum fertilizer recommendations basis, grain sorghum in areas where topsoil has taken! Source: Adopted from National plant Food Institute considered when the potential for nitrate leaching is.... Deficiency shown by purpling is often aggravated by other conditions, such as,. Source for many nutrients, the key elements include nitrogen, phosphorous, potassium, zinc and. From leaching costs as well sorghum requires approximately 1.2 pounds of nitrogen for bushel. Are generally safe from leaching sulfur ratio at approximately 15-to-1 enterprises in Minnesota as phosphate, and.! Crops in the rotation phosphorus phosphorus is especially important as yield increases can show a consistent for! For no-till: high pH soils and soils containing soluble salts that reduce the of... Removal for a 100-bushel per acre sorghum crop quality and yield which these.
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