平衡施肥技术对黄瓜生长和产量的影响

针对本地区目前黄瓜生产中氮化肥施用不当的现状,开展黄瓜平衡施肥及其使用技术的试验研究。结果表明,不同氮肥用量对黄瓜的生长发育、产量的形成及效益的影响,呈显著性差异。施用氮肥处理区较未施用氮肥处理区的产量提高21.1 0%～47.63%;667m~2净效益增加336.58元～1 31 7.60元;减量施用氮肥比正常施用,产量减少20.32%,667m~2净效益下降938.30元;过量施用氮肥比正常施用,产量仅增加1.32%,667m~2净效益增加42.72元。根据本地区实际情况,纯N用量宜控制在11.5kg/667m~2左右。

Effects of Balance Fertilization Technology on Growth and Yeild of Cucumber

The experimental study of the use of balance fertilization technology on cucumber was conducted, aiming at the status of region＇s current production of N-fertilizer improper application in cucumber. The results showed that the effects were significantly different with different amount N-fertilizer on growth, yield and benefit in cucumber. The yield of N-fertilizer applied in treatment area was increased by 21.10% to 47.63% than those no N-fertilizer applied, the net benefit was increased by 336.58 yuan to 1317.60 yuan. The yield of N-fertilizer reduction applied in treatment area was decreased by 20.32% than those normal N-fertilizer applied, the net benefit was descended by 938.30 yuan. The yield of N-fertilizer applied in excess in treatment area was only increased by 1.32% than those normal N-fertilizer applied, the net benefit was increased by 42.72 yuan. According to the local conditions, the optimal N application should be controlled at around 11.5kg per 667m2.