Factor analysis of spatial variability of seed quality of wheat and soybean between and within field, and Precision Crop Management

点击翻译按钮获取中文摘要

Sources of the variation of yield and quality of wheat and soybean in paddy-upland rotational fields (rice-wheat-soybean) were examined during the crops seasons from 2007 through 2010 to evaluate the possibility of the Precision Crop Management that implements the site-specific input of agricultural materials in proportion to the variation of these sources in the field for maximum yield and quality. The proper management of variable rate seeding in proportion to the soil moisture percentage on dried soil basis at seeding in the field may be able to control the number of panicles of wheat in the field to bring the adequate average yield and quality. This variable rate management may control 42.7% of the controllable proporti to total variation of wheat yield in the field.