Add to ORKGA long-term study was established in 1963 and was continued until 2001 at the Northern Research Farm to evaluate the nitrogen (N), phosphorus (P), potassium (K), and lime requirements of continuous corn. The experimental area was on Nicollet soil, pH was 6.1, and both soil P and K were very low. Because one main objective was to study nutrient interactions, 25 treatments evaluated selected combinations of five annual rates of each nutrient using a complex statistical central-composite experimental design
In 1995, a liming study was initiated at the Armstrong Farm where acid topsoil had developed from ex...
A long-term experiment was established in 2009 to study continuous corn responses to potassium (K), ...
In 1995, a liming study was initiated at the Armstrong Farm where acid topsoil had developed from ex...
The study was established in 1963 to determine (1) if acidification of soil from nitrogen (N) fertil...
Producers faced with economic and environmental concerns should know about the benefits of lime, nit...
Producers in Southeast Iowa are interested in managing available soil phosphorus (P) and potassium (...
This study was initiated in 1961 to determine responses of continuous corn and grain sorghum grown u...
A long-term experiment (1958-2002) provides information about the sustainability of long-term nitrog...
A long-term study was established in 1979 to evaluate the effect of various combinations of phosphor...
In 1995, a liming study was initiated at the Armstrong Farm in what had been a continuous corn produ...
Long-term research shows that phosphorus (P) and nitrogen (N) fertilizer must be applied to optimize...
A long-term experiment has been conducted since 1979 at the ISU Northeast Research and Demonstration...
In 1995, a liming study was initiated at the Armstrong Farm where acid soil had developed from exten...
The possibility of growing continuous corn is receiving increasing consideration with the changing a...
Long-term research shows that phosphorus (P) and nitrogen (N) fertilizer must be applied to optimize...
In 1995, a liming study was initiated at the Armstrong Farm where acid topsoil had developed from ex...
A long-term experiment was established in 2009 to study continuous corn responses to potassium (K), ...
In 1995, a liming study was initiated at the Armstrong Farm where acid topsoil had developed from ex...
The study was established in 1963 to determine (1) if acidification of soil from nitrogen (N) fertil...
Producers faced with economic and environmental concerns should know about the benefits of lime, nit...
Producers in Southeast Iowa are interested in managing available soil phosphorus (P) and potassium (...
This study was initiated in 1961 to determine responses of continuous corn and grain sorghum grown u...
A long-term experiment (1958-2002) provides information about the sustainability of long-term nitrog...
A long-term study was established in 1979 to evaluate the effect of various combinations of phosphor...
In 1995, a liming study was initiated at the Armstrong Farm in what had been a continuous corn produ...
Long-term research shows that phosphorus (P) and nitrogen (N) fertilizer must be applied to optimize...
A long-term experiment has been conducted since 1979 at the ISU Northeast Research and Demonstration...
In 1995, a liming study was initiated at the Armstrong Farm where acid soil had developed from exten...
The possibility of growing continuous corn is receiving increasing consideration with the changing a...
Long-term research shows that phosphorus (P) and nitrogen (N) fertilizer must be applied to optimize...
In 1995, a liming study was initiated at the Armstrong Farm where acid topsoil had developed from ex...
A long-term experiment was established in 2009 to study continuous corn responses to potassium (K), ...
In 1995, a liming study was initiated at the Armstrong Farm where acid topsoil had developed from ex...