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为探索后期施肥对小麦生长发育的影响及氮、磷、钾三元素做拔节肥的增产效果，１９９９年春进行了小麦拔节肥施用试验。１试验方法 试验在梅垛乡野梅村丁圣良责任田进行。土壤为高沙土。前期施肥水平：Ｎ１３．１４ｋｇ／亩， Ｐ２Ｏ５７９ｋｇ／亩， Ｋ２Ｏ７． ９ｋｇ／亩；
In order to explore the effect of late fertilization on the growth and development of wheat and the yield increasing effects of three elements of nitrogen, phosphorus and potassium on jointing fertilizer, spring wheat jointing fertilizer experiment was conducted in the spring of 1999. A test method Test in Mei Duo Township Yemei Ding Shengliang Responsible field. The soil is high sand. Pre-fertilization levels: N13.14kg / acre, P2O579kg / acre, K2O7. 9kg / mu;