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Wheat Stubble Height On Subsequent Corn And Grain Sorghum Crops, A. Schlegel
Wheat Stubble Height On Subsequent Corn And Grain Sorghum Crops, A. Schlegel
Kansas Agricultural Experiment Station Research Reports
A field study initiated in 2006 was designed to evaluate the effects of three wheat stubble heights on subsequent grain yields of corn and grain sorghum. Corn yields in 2014 were similar to the long-term average, while sorghum yields were greater than the long-term average. Taller cut stubble in 2014 increased biomass production of corn and yield for grain sorghum. When averaged across 2007 through 2014, corn grain yields were 9 bu/a greater when planted into either tall or strip-cut stubble than into low-cut stubble. Average grain sorghum yields were not significantly affected by wheat stubble height. Water use efficiency …
Weed Control And Crop Tolerance In Inzen Grain Sorghum With Zest Tank Mixtures, R. Currie, P. Geier
Weed Control And Crop Tolerance In Inzen Grain Sorghum With Zest Tank Mixtures, R. Currie, P. Geier
Kansas Agricultural Experiment Station Research Reports
Although preemergence applications of Cinch ATZ provided excellent green foxtail control, it did not provide commercially acceptable levels of Palmer amaranth or crabgrass control. All postemergence tank mixes of Zest raised the level of control achieved by the preemergence applications of Cinch ATZ to excellent levels for these species. With the exception of the Huskie tank mix, which provided excellent Palmer amaranth control, all other postemergence programs provided only adequate control of Palmer amaranth, crabgrass, or green foxtail. Weed pressure of these species was extreme. Under conditions of extreme weed pressure, a foundation treatment of Cinch ATZ followed by a …
Evaluating The Effectiveness Of Iron Chelates In Managing Iron Deficiency Chlorosis In Grain Sorghum, A. Obour, R. Perumal
Evaluating The Effectiveness Of Iron Chelates In Managing Iron Deficiency Chlorosis In Grain Sorghum, A. Obour, R. Perumal
Kansas Agricultural Experiment Station Research Reports
Grain sorghum production in alkaline or calcareous soils is frequently affected by iron (Fe) chlorosis. Soil conditions such as high pH, high free calcium carbonate (lime), and low organic matter favor development of iron deficiency chlorosis (IDC), which can delay crop maturity and reduce yields. Two field experiments were conducted in the summer of 2014 to determine the effectiveness of Fe chelate application in alleviating IDC in grain sorghum. Treatments in the first study were four Fe chelate application rates (0, 3, 6, and 9 lb/a) applied either in-furrow with the seed at the time of planting or 2 weeks …
Nitrogen And Phosphorus Fertilization Of Irrigated Grain Sorghum, A. Schlegel, H. D. Bond
Nitrogen And Phosphorus Fertilization Of Irrigated Grain Sorghum, A. Schlegel, H. D. Bond
Kansas Agricultural Experiment Station Research Reports
(Abstract only. Link to: http://newprairiepress.org/kaesrr/vol1/iss3/6/) Article is nearly identical to
Long-Term Nitrogen and Phosphorus Fertilization of Irrigated Grain Sorghum, previously published in Kansas Fertilizer Research 2015, included in this PDF.
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 2014, N applied alone increased yields 49 bu/a, whereas N and P applied together increased yields up to 81 bu/a. Averaged across the past 10 years, N and P fertilization increased sorghum yields up to 73 bu/a. Application of 40 lb/a N (with P) was …