Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"mixed cropping"”.
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Aphid movement and aphid-borne virus spread in mixed cropping systems of legumes and cereals
Growing legumes in combination with non-hosts of legume viruses is a cultural practice that has been observed to suppress aphid-borne virus epidemics in indigenous farming systems. This study was aimed at unraveling the physical and biological relationships that affect aphid dispersal and the …
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The microclimate of corn and bean cropping systems: Its relationship with Dalbulus maidis, some aphids, and the diseases they transmit
… surfaces create their very own microclimates. Mixed cropping systems rather than monocultures constitute a traditional planting technique in the tropics, and it has been observed that mixed crops are usually less prone to damage from pathogens carried by insects than monocultures. Microclimatic …
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Assessment of change in smallholder farmers’ livelihoods due to land degradation in Ludewa district, Tanzania
… to five percent. In contrast, settlement with mixed cropping increased from 15 percent to 22 percent, bushland with scattered cropping from four percent to 16 percent, and woodland with scattered cropping increased from 10 percent to 22 percent in the same period. The increase in settlement …
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A farm-level model to evaluate the impacts of current energy policy options
… future of farming in New Zealand. A multi-period mixed integer programming model (based on linear programming) is fully specified (in Chapter 3) and used to simulate activity on a case-study mixed cropping farm in Canterbury. The model is validated and run to show the effects, first of imposed …