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Articles 91 - 95 of 95
Full-Text Articles in Life Sciences
Irrigated Corn Response To Long-Term Nitrogen And Phosphorus Fertilization, A. Schlegel, D. Bond
Irrigated Corn Response To Long-Term Nitrogen And Phosphorus Fertilization, 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 2020, N applied alone increased yields by 85 bu/a, whereas P applied alone increased yields 10 bu/a. Nitrogen and P applied together increased yields up to 136 bu/a which is 11 bu/a less than the 10-year average of 147 bu/a. The application of 120 lb N/a (with highest P rate) produced 98% of maximum yield in 2020, which is greater than the 10-year average (2011–2020). The application of 80 instead of 40 lb P2O5 …
Corn Yield Response To Sulfur Applied With Nitrogen Fertilizer, T. E. Husa, D. A. Ruiz Diaz
Corn Yield Response To Sulfur Applied With Nitrogen Fertilizer, T. E. Husa, D. A. Ruiz Diaz
Kansas Agricultural Experiment Station Research Reports
The objective of this study was to evaluate the effect of nitrogen (N) with added sulfur (S) fertilizer on corn yield. The treatments included 1) a control with no sulfur and no nitrogen; 2) urea ammonium nitrate (UAN) (180 lb N/a; 0 lb S/a); and 3) UAN plus ammonium thiosulfate (ATS) (180 lb N/a; 15 lb S/a). Both the UAN and UAN+ATS were balanced to 180 lb N/a. These three treatments were evaluated at two locations in 2019 and three locations in 2020. Preliminary results show that yield trended upward with the application of nitrogen plus sulfur fertilization over N …
Evaluation Of Soil Parameters After Long-Term Subsurface Drip Irrigation Under Minimum Tillage System, E. B. Rutter, D. A. Ruiz Diaz
Evaluation Of Soil Parameters After Long-Term Subsurface Drip Irrigation Under Minimum Tillage System, E. B. Rutter, D. A. Ruiz Diaz
Kansas Agricultural Experiment Station Research Reports
The objective of this study was to evaluate soil parameters after the long-term use of sub-surface drip irrigation under no-till, with the use of high pH irrigation water. Results from this study showed that stratification of soil pH and soil test phosphorus (P) was more prominent when compared to other soil parameters. However, the stratification of pH and soil test P is likely the combined effect of surface fertilizer application and sub-surface irrigation water. The stratification of other parameters, such as soil calcium (Ca) and sodium (Na) and electrical conductivity (EC), was less clear. Soil test potassium (K) showed some …
2020 K-State Industrial Hemp Cbd Variety Trial, Jason Griffin, Clint Wilson, Tami Myers
2020 K-State Industrial Hemp Cbd Variety Trial, Jason Griffin, Clint Wilson, Tami Myers
Kansas Agricultural Experiment Station Research Reports
Hemp is a broad term used to describe the many varieties ofCannabis sativaL. that produce less than 0.3% tetrahydrocannabinol (THC). The crop is globally significant, but only recently was allowed to be grown once again in the United States. Varieties have been selected and are currently grown with a wide cannabinoid profile. Cannabinoids are of high interest for their putative medical and therapeutic role in humans and companion pets. Cannabidiol (CBD) and THC are the two cannabinoids of primary interest. THC is of interest because it determines whether the final product is considered hemp (0.3% THC). CBD is …
Biomass And Nutrient Accumulation By Dual-Purpose Hemp And Concurrent Soil Profile Water Depletion At Two Locations In Kansas In 2020, Kraig Roozeboom, Jason Griffin, Lucas Haag, Gerard Kluitenberg, Dorivar Ruiz Diaz, Michael Shelton, Tami Myers, Clint Wilson, Jared Petz, Matthew Nielsen, Andrew Euler
Biomass And Nutrient Accumulation By Dual-Purpose Hemp And Concurrent Soil Profile Water Depletion At Two Locations In Kansas In 2020, Kraig Roozeboom, Jason Griffin, Lucas Haag, Gerard Kluitenberg, Dorivar Ruiz Diaz, Michael Shelton, Tami Myers, Clint Wilson, Jared Petz, Matthew Nielsen, Andrew Euler
Kansas Agricultural Experiment Station Research Reports
Some crop producers are considering hemp as an alternative to the typical crops grown in the region. Hemp is viewed as a crop to potentially access new markets. Two of those potential markets are hemp grain and fiber. Little information is available for this region about production management for hemp intended for those markets. Experiments were planted in 2020 at Manhattan, Haysville, and Colby, KS, to characterize plant growth, nutrient uptake, and soil water depletion. Results illustrated typical biomass and nutrient uptake patterns. Half of the total biomass was accumulated by 2,200 growing degree days (GDD), but accumulation continued until …