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Fortunately, interpretations of the remotely sensed crop data also indicated that farmers are shifting to longer crop rotations that intersperse small grains with potato.
We conducted microplot trials to explore the potential of fallowing and crop rotation to remediate PRD.
This study investigated the effects of tillage practice and crop rotations on the vertical stratification of nutrients in the soil profile and the distribution of soil P fractions in different soil types collected from 3 key agro-ecological grain production zones of Victoria.
Ahuja also simulated yields of the three crop rotations over the past 96 years of climate data, looking only at C[O.
They already occur in conventional agriculture and are destroyed with a different herbicide or better crop rotation, although multiple tolerance could become an important issue for the farmer if chemical and crop rotation are not adhered to.
Research on the residual effects of crop rotations in other soil types, cropping systems, and geographical regions is also uncommon.
Soybean yields have fallen short of trend in four of the past five years, causing some farmers in key growing areas to consider reducing soybeans in their crop rotations.
Work by Agricultural Research Service scientists in Florence, South Carolina, suggests that farmers in the Southeast could use the tropical legume sunn hemp (Crotalaria juncea) in their crop rotations by harvesting the fast-growing annual for biofuel.
Under discussion will be issues such as crop rotations, variety selection, timing of sowing, physical barriers and mechanical weeding.
This will be followed by talks from Stephen Briggs, of Abacus Organic Associates, and Andrew Wilkinson, of Gilchesters Organics, covering a range of topics, including arable conversion, soil management, weed management, crop rotations and seed supply.
We learned we could be more profitable with crop rotations than by depending on expensive chemicals and fertilizers," says Kennel.