旱地分期施用氮肥对小麦产量和品质的影响  

^Influences of Applying Nitregen Fertilizers by Stages on Production and Quality of Wheat

作　　者：王渭玲[1] 张冀涛[1] 

机构地区：[1]陕西省农业科学院

出　　处：《西北林学院学报》1995年第A01期153-156,共4页Journal of Northwest Forestry University

摘　　要：采用田间小区结合盆栽试验，对旱地氮肥不同分配方式与小麦产量和品质的关系进行了研究。结果表明：氮肥分期施用比一次作底肥不仅能增加小麦产量，而且可改善其籽粒品质。孕穗期和开花期追施氮肥，能提高小麦蛋白质含量、沉淀值和面筋含量，分别从１５．０％、３１．９７ｍＬ和２８．２１％增加到１６．３％、３６．２７ｍＬ和３３．０６％；而产量最高是播种前底肥和拔节期两次施用。Field plot experiments coupled with pot cultivation were adopted to study relationshiphs between nitrogen fertilizers with different distribution ways in arid land and production and quality of wheat. The results showed that applying nitrogen fertilizers by stages could not only increase the wheat production but also improve the seed quality compared to the use as hasal fertilizers. Applying nitrogen fertilizers at heading and flowering stages could increase the contents of proteins, precipitation values and gluten from 15.0%, 31.97ml and 28. 21% to 16.3%,36. 27 mL and 33. 06%. But the maximum production appered when hasal fertilizer of nitrogen was applied before the sowing and at the elongation stage.

关 键 词：旱地 小麦 品质 氮肥 施肥期 

分 类 号：S512.106.2[农业科学—作物学]