Field ecosystem 第1页

Maize diseases and pests of field ecosystems under different structures on dryland red soil Effectsof enhanced UV-B radiation on energy accumulationand energy flow of wheat field ecosystem Biological nitrification denitrification and nitrogen loss in rice field ecosystem Nutrient balance in rice field ecosystem of northern China Effect of hydroquinone and dicyandiamide on N2O and CH4 emissions from lowland rice soil Interactive effect of compound damages by multi-pests in cotton field and application of compound control indicators for “two red pests” Functional features of preserving natural enemies to control insect pests in intercropped cotton field ecosystems Rice field ecosystems in northern China Ⅱ. Study of symbiotic nitrogen fixation of Azolla in rice-Azolla combination systems Rice field ecosystems in northern China Ⅰ. Structural study of rice-Azolla combination systems Study on the Carbon,Nitrogen Cycling characteristics of dry farmland ecosystem on Loess Plateau Effects of enhanced UV-Bradiation on nutrients and accumulation of K of wheat field ecosystem Effects of enhanced UV-B radiation on population quantity dynamics of weeds,soil macroanimals and wheat aphids in the wheat field ecosystem Study on ecosystem services value of food production in China