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Long-Term Nitrogen, Phosphorus, And Potassium Fertilization Of Irrigated Grain Sorghum, A. J. Schlegel, H. D. Bond
Long-Term Nitrogen, Phosphorus, And Potassium Fertilization Of Irrigated Grain Sorghum, A. J. Schlegel, H. D. Bond
Kansas Agricultural Experiment Station Research Reports
Long-term research shows that phosphorus (P) and nitrogen (N) fertilizer must be applied to optimize production of irrigated grain sorghum in western Kansas. In 2018, N applied alone increased yields 44 bu/a, whereas N and P applied together increased yields up to 67 bu/a. Averaged across the past 10 years, N and P fertilization increased sorghum yields up to 75 bu/a. Application of 80 lb/a N (with P) produced the maximum yield in 2018, which is slightly less than the 10-year average. Application of potassium (K) has had no effect on sorghum yield throughout the study period. Average grain N …
Corn Yield Response To The Use Of A Nitrification Inhibitor With Anhydrous Ammonia, F. D. Hansel, D. A. Ruiz Diaz
Corn Yield Response To The Use Of A Nitrification Inhibitor With Anhydrous Ammonia, F. D. Hansel, D. A. Ruiz Diaz
Kansas Agricultural Experiment Station Research Reports
Nitrification inhibitors are used to delay the nitrification process, reducing nitrogen (N) loss. The increase of nitrogen fertilization efficiency could promote greater corn grain yields and reduce environmental losses. The objective of this study was to evaluate corn response to the use of a nitrification inhibitor in corn grain. The study was carried out at four locations (Manhattan, Scandia, Rossville, and Ashland, KS) during 2017 and 2018 crop seasons. There was corn response to N fertilization, but no differences in corn yield were observed when anhydrous ammonia was treated with nitrification inhibitor at these site-years.
Long-Term Nitrogen, Phosphorus, And Potassium Fertilization Of Irrigated Grain Sorghum, A. Schlegel, D. Bond
Long-Term Nitrogen, Phosphorus, And Potassium Fertilization Of Irrigated Grain Sorghum, A. Schlegel, D. Bond
Kansas Agricultural Experiment Station Research Reports
Long-term research shows that phosphorus (P) and nitrogen (N) fertilizer must be applied to optimize production of irrigated grain sorghum in western Kansas. In 2018, N applied alone increased yields 44 bu/a, whereas N and P applied together increased yields up to 67 bu/a. Averaged across the past 10 years, N and P fertilization increased sorghum yields up to 75 bu/a. Application of 80 lb/a N (with P) produced the maximum yield in 2018, which is slightly less than the 10-yr average. Application of potassium (K) has had no effect on sorghum yield throughout the study period. Average grain N …
Long-Term Nitrogen And Phosphorus Fertilization Of Irrigated Corn, A. Schlegel, D. Bond
Long-Term Nitrogen And Phosphorus Fertilization Of Irrigated Corn, A. Schlegel, D. Bond
Kansas Agricultural Experiment Station Research Reports
Long-term research shows that phosphorus (P) and nitrogen (N) fertilizer must be applied to optimize production of irrigated corn in western Kansas. In 2018, N applied alone increased yields by 76 bu/a, whereas P applied alone increased yields by more than 17 bu/a. Nitrogen and P applied together increased yields up to 169 bu/a. This is 26 bu/a more than the 10-year average, where N and P fertilization increased corn yields up to 143 bu/a. Application of 120 lb/a N (with highest P rate) produced 97% of the maximum yield in 2018, which is slightly greater than the 10-year average. …
Long-Term Nitrogen And Phosphorus Fertilization Of Irrigated Corn, A. J. Schlegel, H. D. Bond
Long-Term Nitrogen And Phosphorus Fertilization Of Irrigated Corn, A. J. Schlegel, H. D. Bond
Kansas Agricultural Experiment Station Research Reports
Long-term research shows that phosphorus (P) and nitrogen (N) fertilizer must be applied to optimize production of irrigated corn in western Kansas. In 2018, N applied alone increased yields by 76 bu/a, whereas P applied alone increased yields up to 17 bu/a. Nitrogen and P applied together increased yields up to 169 bu/a which is 26 bu/a more than the 10-year average of 143 bu/a. Application of 120 lb/a N (with highest P rate) produced 97% of maximum yield in 2018, which is slightly greater than the 10-year average. Application of 80 instead of 40 lb P2O5 …
Changes In Soil Nitrate And Ammonium During The Corn Growing Season As Affected By Nitrification Inhibitors, F. D. Hansel, D. A. Ruiz Diaz
Changes In Soil Nitrate And Ammonium During The Corn Growing Season As Affected By Nitrification Inhibitors, F. D. Hansel, D. A. Ruiz Diaz
Kansas Agricultural Experiment Station Research Reports
Nitrification inhibitors (NI) are used to delay the nitrification process, increasing nitrogen fertilization efficiency. The objective of this study was to evaluate the effect of NI on soil nitrate (NO3-N) and ammonium (NH4-N) content throughout the growing season for corn. The study was conducted at four locations (Manhattan, Scandia, Rossville, and Ashland, KS) during the 2017 and 2018 crop seasons. Most of the NI effects on soil NH4-N and NO3-N were observed early in the season and when the higher nitrogen (N) fertilizer rate was used. An increase in NO3-N …