Breaking Corn Yield Barriers: A Cropping Systems Approach

Review of Corn Yield Response under Winter Cover Cropping Systems Using Meta-Analytic Methods

yield of the following crop (Wagger and Mengel, 1993). Winter cover crop residues can affect soil water dynamExtensive research on the use of winter cover crops (WCC) under ics by reducing runoff, increasing infiltration, and reducdifferent agricultural practices in the USA and Canada has shown both negative and positive effects on subsequent corn (Zea mays L.) ing evaporation, all of which may...

CROPPING SYSTEMS Effects of Western Corn Belt Cropping Systems on Agroecosystem Functions

tices on agroecosystem functions is necessary to determine the sustainability of cropping systems. Agricultural sustainability is enhanced by management practices Performance-based indices have been used to assess that optimize the performance of multiple agroecosystem functions. the effects of management practices on agroecosystem The performance of western Corn Belt cropping systems was evalu...

Nematode numbers and crop yield in a fenamiphos-treated sweet corn-sweet potato-vetch cropping system.

Nematode population densities and yield of sweet corn and sweet potato as affected by the nematicide fenamiphos, in a sweet corn-sweet potato-vetch cropping system, were determined in a 5-year test (1981-85). Sweet potato was the best host of Meloidogyne incognita of these three crops. Fenamiphos 15G (6.7 kg a.i./ha) incorporated broadcast in the top 15 cm of the soil layer before planting of e...

Profitability of Various Corn, Soybean, Wheat, and Alfalfa Cropping Systems

Producers are frequently most interested in economic comparisons of various cropping systems. We compared continuous corn (Zea mays L.) and continuous soybean [Glycine max (L.) Merr.] with 2-, 3-, and 5-year rotations, the latter two including wheat (Triticum aestivum L.) and alfalfa (Medicago sativa L.), using either chisel plow or no-tillage practices. Crop yield and returns to land and manag...

Corn grain yield responses to tillage systems and plant densities