Archive | 6th Technical Report (1996)

Summary of the 6th year of WICST and related soil biodiversity analyses.

Whole-Farm Nutrient Budgeting on Twenty-Eight Farm Operations in Southern Wisconsin

Concerns about the environmental impact of farm nutrient buildup and resulting losses have emerged with the application of purchased fertilizer and increasing livestock density during recent decades. Historical data from the University of Wisconsin Soil and Plant Analysis Lab show that nutrient levels on Wisconsin agricultural land have been rapidly rising (Combs, 1996). As a [...] More »

Soil Invertebrates Associated with 1996 Soil Core Sampling and Residue Decomposition

Soil core sampling began in 1995 as a complementary measure of soil arthropod abundance and biological diversity. The objectives of the soil core study are (1) to determine the influence of crop rotation, fertilizer and pesticide/herbicide inputs on soil arthropod populations, and (2) to have a sampling plan which is directly comparable to the [...] More »

WICST economic analysis -1996

Despite the lower crop yields resulting from adverse planting season weather conditions, the 1996 economic analysis for the WICST experiment continues to show a level of profitability for the lower input systems comparable with those of the higher input systems (see Tables 1a-2b). In particular, cropping system 3 (CS#3; corn\soybean\wheat\red clover) continues to have [...] More »

WICST Intensive Rotational Grazing of Dairy Heifers -1996

Rotational Grazing is the lowest input system of the three Dairy Systems represented in the Wisconsin Integrated Cropping Systems Trial. Pastures were established at the Lakeland Agricultural Complex (LAC) and Arlington Agricultural Research Station (ARS) in 1990. Pastures were mechanically harvested (see yields in table 6) until spring 1992 when water lines were [...] More »

Cropping system three Chemlite satellite trial-Arlington, 1995 and 1996

In spite of very low corn yields in 1992 and 1993, and below average wheat yields, almost every year, Cropping System 3 (CS3) has been at least as profitable as the continuous corn system. It is not clear however, how much of the profitability of CS3 is due to the zero purchased input philosophy [...] More »

Corn response to commercial fertilizer in a low input cash grain system

Introduction Corn yields were lower than expected in the corn-soybean-wheat/red clover (CS3) rotation during the 1992 and 1993 growing seasons. Experiments were initiated at LAC and ARS in 1994 to determine the cause of the low yields and to find out whether adding some purchased inputs would be cost-effective. Soil fertility and weed pressure [...] More »

Monitoring fall nitrates in the WICST project (1992-1996)

INTRODUCTION The amount of inorganic N remaining in the soil profile following crop harvest is an important factor that reflects the nitrate leaching potential of a particular field situation. The two major reasons that NO3-N accumulates after crop harvest are: a) N uptake was less than expected (due to poor soil structure, drought, pest [...] More »

Lakeland Agricultural Complex - 1996 Report

Summary of weather, yields, and agronomic operations on WICST at Elkhorn, WI 1996 More »

Arlington Agricultural Research Station - 1996 Report

Summary of yields, weather and agronomic operations for WICST at Arlington 1996 More »

Analyses of Nematode Communities in the WISCT Preliminary Analysis of 1995 Data from the Arlington Site

The objective of this project is to determine if the cropping systems differ in terms of the types and taxa of nematodes present. Our long term goals are to determine how the nematode community contributes to the “rotation effect” and to develop predictive uses for nematode community structure. Author: Ann MacGuidwin More »