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发表于 2025-4-1 03:32:51
Agricultural Systems of the Northeastern Hill Region of Indiaodels for development in an energy-limited world has led to renewed scientific interest in traditional systems of agriculture, which presumably offer ecological efficiency. In particular, shifting or swidden systems of cultivation have been held up as models of productive efficiencies where five to
WAIL
发表于 2025-4-1 09:48:18
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收集
发表于 2025-4-1 10:23:42
Columbus’s Reference Line on Earthm crop production rather than maximize it on a short term basis (Gliessman et al., 1981). In addition to the more obvious effect of sustained agricultural yield, some of these systems appear to suppress or check the development of various plant diseases associated with the soil (García-E., 1980; Gar
弯曲道理
发表于 2025-4-1 16:04:02
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Alopecia-Areata
发表于 2025-4-1 20:25:49
https://doi.org/10.1007/978-3-031-36255-2le increase after the first year of fallow growth, whereas N and P accumulation continued at steady rates for another 2 years of fallow development. The role of weeds in nutrient accumulation during the initial stages of secondary succession has been reported by Toky and Ramakrishnan (1983) and Lamb