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Full-Text Articles in Life Sciences
Wheat And Grain Sorghum In Four-Year Rotations, A. Schlegel, J. Holman, A. Burnett
Wheat And Grain Sorghum In Four-Year Rotations, A. Schlegel, J. Holman, A. Burnett
Kansas Agricultural Experiment Station Research Reports
In 1996, an effort began to quantify soil water storage, crop water use, and crop productivity on dryland systems in western Kansas. Research on 4-year crop rotations with wheat and grain sorghum was initiated at the Southwest Research-Extension Center near Tribune, KS. Rotations were wheat-wheat-sorghum-fallow (WWSF), wheat-sorghum-sorghum-fallow (WSSF), and continuous wheat (WW). Soil water at wheat planting averaged about 9 in. following sorghum, which is about 3 in. more than the average for the second wheat crop in a WWSF rotation. Soil water at sorghum planting was only about 1.5 in. less for the second sorghum crop compared to sorghum …
Large-Scale Dryland Cropping Systems, A. Schlegel, L. Haag, A. Burnett
Large-Scale Dryland Cropping Systems, A. Schlegel, L. Haag, A. Burnett
Kansas Agricultural Experiment Station Research Reports
This study was conducted from 2008–2019 at the Kansas State University Southwest Research- Extension Center near Tribune, KS. The purpose of the study was to identify whether more intensive cropping systems can enhance and stabilize production in rainfed cropping systems to optimize economic crop production, more efficiently capture and utilize scarce precipitation, and maintain or enhance soil resources and environmental quality. The crop rotations evaluated were continuous grain sorghum (SS), wheat-fallow (WF), wheat-corn-fallow (WCF), wheat-sorghum-fallow (WSF), wheat-corn-sorghum-fallow (WCSF), and wheat-sorghum-corn-fallow (WSCF). All rotations were grown using no-tillage practices except for WF, which was grown using reduced-tillage. The efficiency of precipitation …
Tillage Intensity In A Long-Term Wheat-Sorghum-Fallow Rotation, A. Schlegel, A. Burnett
Tillage Intensity In A Long-Term Wheat-Sorghum-Fallow Rotation, A. Schlegel, A. Burnett
Kansas Agricultural Experiment Station Research Reports
This study was initiated in 1991 at the Kansas State University Southwest Research- Extension Center near Tribune, KS. The purpose of the study was to identify the effects of tillage intensity on precipitation capture, soil water storage, and grain yield in a wheat-sorghum-fallow rotation. Grain yields of wheat and grain sorghum increased with decreased tillage intensity in a wheat-sorghum-fallow (WSF) rotation. In 2019, available soil water at sorghum planting was greater for no-tillage (NT) than reduced tillage (RT) which was greater than conventional tillage (CT). For wheat there was a similar pattern as sorghum, with available soil water at wheat …
Occasional Tillage In A Wheat-Sorghum-Fallow Rotation, A. Schlegel, J. Holman
Occasional Tillage In A Wheat-Sorghum-Fallow Rotation, A. Schlegel, J. Holman
Kansas Agricultural Experiment Station Research Reports
Beginning in 2012, research was conducted in Garden City and Tribune, KS, to determine the effect of a single tillage operation every 3 years on grain yields in a wheat-sorghum-fallow (WSF) rotation. Grain yields of wheat and grain sorghum were generally not affected by a single tillage operation every 3 years in a WSF rotation. Grain yield varied greatly by year from 2014 to 2019. Wheat yields ranged across years from mid-20s to 90 bu/a at Tribune and less than 10 to near 100 bu/a at Garden City. Grain sorghum yields ranged from 40 to greater than 140 bu/a, depending …
Long-Term Effect Of Tillage Practices And Nitrogen Fertilization On Corn Yield, Carlos A. Bonini Pires, Marcos M. Sarto, James S. Lin, William G. Davis, Charles Rice
Long-Term Effect Of Tillage Practices And Nitrogen Fertilization On Corn Yield, Carlos A. Bonini Pires, Marcos M. Sarto, James S. Lin, William G. Davis, Charles Rice
Kansas Agricultural Experiment Station Research Reports
The objective of this study was to investigate the effect of different tillage systems and nitrogen (N) fertilizers on corn yield. Higher corn yields (207 bu/a and 203 bu/a) were found under no-tillage + high (150 lb N/a) manure application, and tillage + super high manure (750 lb N/a), respectively. The trend observed for the different nitrogen fertilizers between tillage systems was the same. However, a greater corn yield was observed under no-till in comparison to tilled conditions for both high fertilizer and high manure. No-till improves soil water infiltration, aggregation, nutrient cycling, and may increase crop yield. On other …
Pre-Plant Nitrogen Rate And Application Method And Side-Dress Nitrogen Rate Effects On No-Till Corn Grown On A Claypan Soil, D. W. Sweeney, D. Ruiz Diaz
Pre-Plant Nitrogen Rate And Application Method And Side-Dress Nitrogen Rate Effects On No-Till Corn Grown On A Claypan Soil, D. W. Sweeney, D. Ruiz Diaz
Kansas Agricultural Experiment Station Research Reports
Average corn yield in 2019 was increased by 14 bu/a with knife application of pre-plant nitrogen (N) fertilizer compared with broadcast application. Applying N more than doubled yield of corn grown without N. In general, applying side-dress N increased yields compared to yields obtained with only pre-plant applications.
Soil Microbial Seasonal Community Dynamics In Response To Cover Crop And Phosphorus Fertilizer Usage In A No-Till Corn-Soybean System In 2018, C. L. Stewart, L. M. Starr, N. O. Nelson, K. L. Roozeboom, G. J. Kluitenberg, D. R. Presley, P. J. Tomlinson
Soil Microbial Seasonal Community Dynamics In Response To Cover Crop And Phosphorus Fertilizer Usage In A No-Till Corn-Soybean System In 2018, C. L. Stewart, L. M. Starr, N. O. Nelson, K. L. Roozeboom, G. J. Kluitenberg, D. R. Presley, P. J. Tomlinson
Kansas Agricultural Experiment Station Research Reports
This study examined microorganism community composition in plots managed with and without cover crops and three contrasting phosphorous (P) fertilizer management techniques in a no-till corn-soybean system. This work was performed in the spring and fall of 2018 at the Kansas Agricultural Watershed Field Laboratory (KAW), Manhattan, KS. The study design was a 2 × 3 complete block factorial design with three replications, with cover crop presence or absence and three levels of P fertilizer management (control, fall broadcast, and spring injected). To examine microorganism community composition, phospholipid fatty acid (PLFA) analysis was used. Only the main effect of cover …