Evaluation of Fertilizer Nitrogen Applications With and Without Ammonium Sulfate in Selected Vegetable Crops

IPNI-1999-USA-MD11

To measure the response, in lbs/a, of processing sweet corn to SULF-N45, ammonium sulfate, blended with the standard nitrogen source ammonium nitrate. Read more


Year of initiation:1999
Year of completion:2007
Map:

Interpretive Summary

Evaluation of Fertilizer Nitrogen Applications with and without Ammonium Sulfate in Selected Vegetable Crops in Maryland, 2008 The objective of this study is to evaluate the effectiveness of ammonium sulfate (AS) in a rotation of potatoes with wheat/doublecrop soybeans, corn, and single-crop soybeans under irrigation with different levels of tillage.

Evaluation of Fertilizer Nitrogen Applications with and without Ammonium Sulfate in Selected Vegetable Crops, 2007 The objective of this study is to evaluate the effectiveness of ammonium sulfate (AS) in a rotation of potatoes with wheat/doublecrop soybeans, corn, and single-crop soybeans under irrigation with different levels of tillage.

Evaluation of Fertilizer Nitrogen Applications with and without Ammonium Sulfate in Selected Vegetable Crops, 2004. The objective of this study is to measure the influence of ammonium sulfate (AS) blended with ammonium nitrate on the yield of irrigated sweet corn. In 1999, sweet corn yields increased from 1. 6 to 6. 5 t/A in response to application of 120 lb of nitrogen (N)/A. During the 2000 season, blending AS into the N supply increased the yield of sweet corn by 5%. Yields as high as 8.

Evaluation of Fertilizer Nitrogen Applications with and without Ammonium Sulfate in Selected Vegetable Crops, 2003. The objective of this study is to measure the influence of ammonium sulfate (AS) blended with ammonium nitrate on the yield of irrigated sweet corn. In 1999, sweet corn yields increased from 1. 6 to 6. 5 t/A in response to application of 120 lb of nitrogen (N)/A. During the 2000 season, blending AS into the N supply increased the yield of sweet corn by 5%. Yields as high as 8.

Evaluation of Fertilizer Nitrogen Applications with and without Ammonium Sulfate in Selected Vegetable Crops, 2002 The objective of this study is to measure the influence of ammonium sulfate (AS), blended with ammonium nitrate, on the yield of irrigated sweet corn. In 1999, sweet corn yields increased from 1. 6 to 6. 5 tons/A in response to application of 120 lb of N/A. During the 2000 season, blending AS into the nitrogen (N) supply increased the yield of sweet corn by 5%. Yields as high as 8.

Evaluation of Fertilizer Nitrogen Applications with and without Ammonium Sulfate in Selected Vegetable Crops, 2001 The objective of this study is to measure the influence of ammonium sulfate [(NH4)2SO4] blended with ammonium nitrate (NH4)2NO4on the yield of various vegetable crops. In 1999, sweet corn yields increased from 1. 6 to 6. 5 tons/A in response to application of 120 lb N/A. During the 2000 season, blending (NH4)2SO4 into the N supply increased the yield of sweet corn by 5 percent.

Evaluation of Fertilizer Nitrogen Applications with and without Ammonium Sulfate in Selected Vegetable Crops, 2000 The objective of this study is to measure the influence of (NH4)2SO4 blended with NH4NO3 on the yield of various vegetable crops. In 1999 sweet corn yields increased from 1. 6 to 6. 5 tons/A in response to 120 lb N/A. Yields trended upward as the N rate increased to 200 lb/A. Little difference was noted between the no-till and minimum tillage treatments.

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Updates & Reports

2008

2008 Annual Report

2001

Objectives

2001

Project Description

2001

Justification


Project Leader

F. Ronald Mulford, University of Maryland


Project Cooperators

None


IPNI Staff

T. Bruulsema


Location

Americas \ Northern America \ USA \ Maryland


Topics

4r source, soil fertility and productivity

maize, potato

Nitrogen (N)