نتایج جستجو برای: continuous cropping
تعداد نتایج: 270193 فیلتر نتایج به سال:
Guiyan Wang Yuhong Wu Wangsheng Gao Michel Fok Weili Liang Hebei Agricultural University, P. R. of China 071001 [email protected] China Agricultural University; CIRAD, Annual Cropping Systems, Montpellier, France Abstract: In order to analyze the impacts of Bt cotton on the farmers’ livelihood system, we interviewed 169 farmers and extension personnel in the main cotton production areas in He...
Bioenergy crops have the potential to enhance soil carbon (C) pools fromincreased aggregation and the physical protection of organicmatter; however, our understanding of the variation in these processes over heterogeneous landscapes is limited. In particular, little is known about the relative importance of soil properties and root characteristics for the physical protection of particulate orga...
It has long been concerned how crop water use efficiency (WUE) responds to climate change. Most of existing researches have emphasized the impact of single climate factor but have paid less attention to the effect of developed agronomic measures on crop WUE. Based on the long-term field observations/experiments data, we investigated the changing responses of crop WUE to climate variables (tempe...
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