近几年,我们围绕棉花的需钾问题从植株到土壤做了系统试验。试验地点是浙江农业大学农场、萧山县共联六队和钱江农场,以及海盐县的海塘十三队。这些地点都位于钱塘江口两岸。土壤母质均为浅海沉积物。粉 In recent years, we systematically experimented from plant to soil around the need for potassium in cotton. The test sites were the farms of Zhejiang Agricultural University, Xiaoshan County’s Lianhe Six Team and Qianjiang Farm, and the Haiyan Thirteen Team at Haiyan County. These locations are located on both banks of the mouth of Qiantang River. Soil parent materials are shallow sea sediments. powder