Follow a legume cropwith a highnitrogendemanding crop. A plant under low stress is better able to resist or compete with pests and is thus healthier. Fred magdoff and harold van es, chapter 11, crop rotation, pp. In a typical corn and soybean rotation, live plants and active roots are present less than a third of the time during a calendar year magdoff and van es, 2000. Typically there are 1,000 to 2,000 times more microbes especially bacteria and fungi associated with living roots because the roots provide active carbon and exudates to feed the microbes schaetzl and anderson, 2006. Production guide for organic grapes 2011 nys ipm publication no. Grow lessnitrogendemanding cropsin the second or third year after a legume sod.
Homesteading library by author soil and health library. Concept, components, and strategies of soil health in. Ecosystem u i notill planting of corn into cover crop of barley. Modern cropping rotations and management practices have an effect on microorganisms in the soil. Fred magdoff and harold van es authors purdue master gardener program helping others grow purdue university, west lafayette, indiana. Pdf building soils for better crops building soils for. Fred magdoff and harold van es authors purdue master. Grow annual crops for only one year in a particular location. Building soils for better crops p second edition for. Wetness of the soil due to intermittent rainfall could possibly enhance the development.
Magdoff and van es 2000 carried out a 5year experiment with clover in california and demonstrated that cover crops increase the organic matter content in the top 5 cm layer of soil from 1. Magdoff and van es 2000 showed that rain increased the incidence of diseases by increasing plant wetness. Magdoff, fred and van es, harold building soils for better crops 2002 this book contains the finest madesimple explanations of how soil works, why organic matter levels and qualities in soils is the key to intelligent management decisions. Authors magdoff and van es have greatly expanded the scope of building soils while keeping the language straightforward and farmerfriendly. For more information, refer to the cornell soil health website. These practices tend to reduce plant stress and, at the same time, frequently inhibit a pest, andor stimulate a natural enemy of a plant pest.
1282 1112 615 718 1138 1537 549 1030 228 524 339 1185 83 574 434 727 216 1020 480 965 933 224 1385 379 1453 277 1225 1149 1177 463 1468 218