About Us | Help Videos | Contact Us | Subscriptions
 

Abstract

 

This article in AJ

  1. Vol. 74 No. 4, p. 684-687
     
    Received: Sept 21, 1981
    Published: July, 1982


 View
 Download
 Alerts
 Permissions
 Share

doi:10.2134/agronj1982.00021962007400040021x

Influence of Tillage Practices on the Fertility Status of an Acid Soil Double-Cropped to Wheat and Soybeans1

  1. W. L. Hargrove,
  2. J. T. Reid,
  3. J. T. Touchton and
  4. R. N. Gallaher2

Abstract

Abstract

Multiple cropping in conjunction with various minimum tillage practices is currently a conspicuous agricultural production method in the southeastern U.S. The objective of this study was to determine the influence of 5 years of various tillage practices on the fertility status of an Ultisol continuously double-cropped to wheat (Triticum aestivum L.) and soybeans (Glycine max L.). The tillage treatments for each fallhpring were: no-tillage/no-tillage, harrow/ho-tillage, conventional tillageho-tillage, no-tillage/conventional tillage, harrow/conventional tillage, conventional tillage/conventional tillage. With no-tillage, soil pH decreased more rapidly with depth than with conventional tillage treatments. Accumulations of Ca, Mg, P, Mn, and Zn occurred in the surface soil with no-tillage treatments, but surface soil K was lower with no-tillage compared to conventional tillage treatments. Organic C and N did not accumulate in the soil surface under no-tillage to the degree reported in other studies. Results indicate that continuous no-tillage results in increased nutrient concentrations in the surface soil with a rapid decrease with depth, while conventional tillage resulted in a more homogeneous soil with respect to soil fertility status

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © .