大豆是我市主栽作物之一,每年种植面积都在50万亩以上,占总耕地面积的20%左右。它产量的高低,对我市城乡经济的繁荣和发展,有着很大影响。目前生产上很少施用钾肥,大豆要创高产,在施用氮、磷肥的基础上,应配合施用钾肥。为探讨钾肥在大豆生产上的增产效果,确定钾肥最佳用量,199 Soybean is one of the main crops in our city. The annual planting area is above 500,000 mu, accounting for about 20% of the total cultivated land area. The level of its production has great influence on the economic prosperity and development of our city and rural areas. At present, the production of seldom used potassium fertilizer, soybeans to achieve high yield, the application of nitrogen, phosphate fertilizer, based on the application of potassium should be combined. In order to explore the yield-increasing effect of potash on soybean production, determine the optimum amount of potash fertilizer, 199