安阳市植棉区土壤养分现状与合理施肥技术张志华倪玉芹王秀平河南省安阳市土肥站４５５０００近十几年，随着农业生产的发展，作物产量的大幅度增加，土壤养分状况也发生了较大的变化。为进一步了解掌握当地植棉区耕层土壤养分变化动态，继１９８２年第二次土壤普查之后... Soil Nutrient Status and Reasonable Fertilization Techniques in Cotton Planting Areas of Anyang City Zhang Zhihua, Ni Yuqin, Wang Xiuping Soil Fertility Station, Anyang City, Henan Province 455000 In recent ten years, with the development of agricultural production, the crop yield increased significantly and the soil nutrient status also occurred big change. In order to know more about the dynamic changes of topsoil nutrient in the local cotton-growing areas, after the second soil survey in 1982 ...