施用绿肥 (苦豆子鲜草) 对立架甜瓜土壤速效养分与产量的影响

摘要

通过绿肥 (苦豆子鲜草) 不同施用量的田间试验, 研究施用苦豆子鲜草对立架露地栽培甜瓜 (伽师瓜)土壤速效养分与产量的影响, 结果表明: 与不施绿肥 (苦豆子鲜草) 的K0处理相比, 施用苦豆子鲜草能够有效提高土壤肥力水平, 对提高20~40 cm土层土壤中碱解氮和有效磷的含量较为显著; 同时施用苦豆子鲜草能促进甜瓜增产并改善品质, 尤其对改善甜瓜果形指数、 Vc和还原糖含量有显著作用; 苦豆子鲜草施用量9 000 kg/hm2效果最佳.%Studied the effect of soil available nutrients and yield of trellis-cultivated melon ( Cucumis melo var. saccharinus Naud) in open field with the different amount of green manure ( Sophora alopecuroides) . The results showed that it could effec-tively improve soil fertility to apply green manure ( Sophora alopecuroides) comparing with K0 treatment no-applying green ma-nure, and it was more significant to improve the contents of soil alkaline hydrolysis N and available phosphorus in 20~40 cm layer. While it could improve yield and quality of melon to apply green manure (Sophora alopecuroides), especially it was more significant to improve the fruits shape index, Vc and reducing sugar content of melon. The best effect was to apply 9 000 kg/hm2 green manure ( Sophora alopecuroides) .