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根系吸水模型参数的混合遗传算法估算方法（Inverse Method Estimating Root Water Uptake Model Parameters Using Hybrid Genetic Algorithms）
根系吸水模型 参数优化 混合遗传算法
2009/9/11
构建了遗传算法与Levenberg-Marquardt算法相结合的混合遗传算法，用于求解根系吸水模型参数。分别进行数值试验和棉花根系吸水试验对混合遗传算法求解精度进行验证。数值试验表明，采用混合遗传算法优化求解根系吸水模型参数的优化值具有较高的精度，含水率资料的时间步长和空间步长对根系吸水模型参数的优化精度有较大影响，在实际中时间步长可取值5～10d，空间步长取值5～10cm。对室内棉花根系吸水进...
Eff ect of mycorrhizal inoculation on growth, nitrogen fi xation,and nutrient uptake in Cicer arietinum (L.) under salt stress
Cicer arietinum Glomus mosseae growth nitrogenase nutrients
2011/3/29
Most legumes in natural conditions form a symbiosis with arbuscular mycorrhizal (AM) fungi. AM fungi
in saline soils have been reported to improve salinity tolerance and growth in plants. In the pres...
Effect of vermicompost enriched with rock phosphate on the yield and uptake of nutrients in cowpea（Vigna unguiculata [L. ] Walp)
Cowpea nutrient uptake vermicompost yield
2009/2/20
A field experiment was conducted in a Rhodic Haplustox during 1997-98 to study the effect of enriched vermicompost on the yield and uptake of nutrients by cowpea. Among the different treatments trie...