Placement of Preplant Liquid Nitrogen and Phosphorus Fertilizer and Nitrogen Rate Affects No-Till Wheat Following Different Summer Crops

2007 ◽  
Vol 99 (4) ◽  
pp. 1009-1017 ◽  
Author(s):  
K. W. Kelley ◽  
D. W. Sweeney
Keyword(s):  
Liquid Nitrogen ◽  
Phosphorus Fertilizer ◽  
Nitrogen And Phosphorus ◽  
Nitrogen Rate ◽  
No Till

Effect of Phosphorus Fertilizer Broadcast in Fall or Spring on Yields of No-Till Corn and Soybean

2008 ◽  
Author(s):  
Antonio P. Mallarino ◽  
Jeff Butler ◽  
Bernard J. Havlovic
Keyword(s):  
Phosphorus Fertilizer ◽  
No Till

Nitrate Leaching to a Shallow Mid-Atlantic Coastal Plain Aquifer as Influenced by Conventional No-Till and Low-Input Sustainable Grain Production Systems

1993 ◽  
Vol 28 (3-5) ◽  
pp. 691-700 ◽  
Author(s):  
J. P. Craig ◽  
R. R. Weil
Keyword(s):  
Management Practices ◽  
Production Systems ◽  
Cropping Systems ◽  
Cropping System ◽  
Atlantic Coastal Plain ◽  
Grain Production ◽  
Nitrogen And Phosphorus ◽  
Mineral N ◽  
Low Input ◽  
No Till

In December, 1987, the states in the Chesapeake Bay region, along with the federal government, signed an agreement which called for a 40% reduction in nitrogen and phosphorus loadings to the Bay by the year 2000. To accomplish this goal, major reductions in nutrient loadings associated with agricultural management practices were deemed necessary. The objective of this study was to determine if reducing fertilizer inputs to the NT system would result in a reduction in nitrogen contamination of groundwater. In this study, groundwater, soil, and percolate samples were collected from two cropping systems. The first system was a conventional no-till (NT) grain production system with a two-year rotation of corn/winter wheat/double crop soybean. The second system, denoted low-input sustainable agriculture (LISA), produced the same crops using a winter legume and relay-cropped soybeans into standing wheat to reduce nitrogen and herbicide inputs. Nitrate-nitrogen concentrations in groundwater were significantly lower under the LISA system. Over 80% of the NT groundwater samples had NO3-N concentrations greater than 10 mgl-1, compared to only 4% for the LISA cropping system. Significantly lower soil mineral N to a depth of 180 cm was also observed. The NT soil had nearly twice as much mineral N present in the 90-180 cm portion than the LISA cropping system.

EFFECTS OF INORGANIC NITROGEN AND PHOSPHORUS FERTILIZERS ON SELECTED SITES OF NATIVE GRASSLAND IN WESTERN CANADA

1965 ◽  
Vol 45 (3) ◽  
pp. 229-237 ◽  
Author(s):  
M. R. Kilcher ◽  
S. Smoliak ◽  
W. A. Hubbard ◽  
A. Johnston ◽  
A. T. H. Gross ◽  
...  
Keyword(s):  
Inorganic Nitrogen ◽  
Total Yield ◽  
First Year ◽  
Western Canada ◽  
Phosphorus Fertilizer ◽  
Nitrogen And Phosphorus ◽  
Native Grass ◽  
Yield Increase ◽  
Native Grassland ◽  
Better Than

N, P, and N + P at 60, 26, and 60 + 26 lb per acre were applied on native grass sites during three successive years at seven, locations in Western Canada. Single applications of the N fertilizer resulted in 3- or 4-year total yield increases of 300 to 600 lb per acre at six locations. At Summerland the 3-year increase was nearly 1400 lb. Phosphorus fertilizer by itself provided very little yield increase. N + P gave yield increases that were only slightly better than those from N alone.Residual responses to fertilizer were important, especially in the 12- to 16-in. rainfall locations. Only about one-third of the total yield increase occurred in the first year, with the remainder coming in the subsequent seasons.Weeds, where present, showed a marked response to fertilizer N in the first season; in subsequent years the response largely disappeared.

scholarly journals Defining Yield Goals and Management Zones to Minimize Yield and Nitrogen and Phosphorus Fertilizer Recommendation Errors

2004 ◽  
Vol 96 (3) ◽  
pp. 1 ◽  
Author(s):  
Jiyul Chang ◽  
David E. Clay ◽  
Charles G. Carlson ◽  
Cheryl L. Reese ◽  
Sharon A. Clay ◽  
...  
Keyword(s):  
Phosphorus Fertilizer ◽  
Nitrogen And Phosphorus ◽  
Management Zones ◽  
Fertilizer Recommendation

ESTIMATING OF CROP YIELD DEPENDENCE IN CROP ROTATION FROM THE USE OF SAPROPELS, LIME, NITROGEN AND PHOSPHORUS FERTILIZER

2021 ◽  
pp. 13-20
Author(s):  
Igor Vasilievich Sinyavskiy ◽  
Aleksey Mikhailovich Plotnikov ◽  
Andrey Viktorovich Sozinov ◽  
Natalya Dmitrievna Gushchenskaya
Keyword(s):  
Crop Rotation ◽  
Crop Yield ◽  
Phosphorus Fertilizer ◽  
Nitrogen And Phosphorus
Sign in / Sign up

Export Citation Format

Share Document