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太湖地区位于长江三角洲的南部,西起莫干山、茅山,南临钱塘江,北至长江,东达东海。包括江、浙、沪太湖周围的三十一个县。面积约三万多平方公里,其中低山丘陵、水面各占20%,平原圩田约占60%。该地区土壤磷素状况过去系统研究不多,一般认为磷肥在该地区肥效不大。但随着生产的发展,氮、磷不平衡的问题
The Taihu Lake region is located in the southern part of the Yangtze River Delta, starting from Moganshan and Maoshan in the west, Qiantang River in the south, and to the east of Yangtze River and Dongda in the east. Including Jiangsu, Zhejiang and Shanghai around the Taihu Lake 31 counties. An area of about more than 30,000 square kilometers, of which hilly, water each account for 20%, plain polder about 60%. In the past, there was not much systematic research on the status of soil phosphorus in the area. It is generally believed that the phosphate fertilizer has little effect on the area. But with the development of production, nitrogen and phosphorus imbalances