转基因抗虫棉施肥技术研究  

Study on Technique of Fertilizer Application on Transgenic Bt.Cotton

作　　者：饶慧斌[1] 李玉琴[1] 刘生荣[1] 朱战烨 

机构地区：[1]西北农林科技大学农学院棉花所,陕西杨凌712100 [2]杨凌柳林制药厂,陕西杨凌712100

出　　处：《西北农业学报》2007年第4期131-133,共3页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：陕西省农业重点推广项目"转基因抗虫棉高效简化栽培技术研究与推广"资助

摘　　要：采取施基肥、追肥和叶面喷肥的方法,对转基因抗虫棉的施肥技术进行了研究。结果表明:重施基肥、早施追肥、增施钾肥、叶面喷肥是转基因抗虫棉施肥技术的核心。重施基肥,增施钾肥,氮、磷、钾合理配施对转基因抗虫棉前期弱生长势的快速转化具有重要作用,干物质积累比对照提高15%～20%,皮棉增产8.4%～19.0%;追肥以初花期为宜,分别比盛蕾期和盛花期追肥增产7.1%和14.8%;叶面喷施KH2PO4及与尿素和硼肥的混合液2～3次,能明显减轻后期早衰,增产明显。The experiment of fertilizer a technique which could increased output much more fertilizer before sowing, to pplication technique was done. The result showed that the key and lint yield by 15%-20%and 8. 4%-19.0% was to apply increase potassium and to use nitrogen, phosphate an um in the optimum proportion. The optimum period of topdressing was the early which the yield increased by 7.1% and 14.8% than it was used with KH2PO4, CO（NH2）2 and B sprayed for 2-3 times could p in boll and flowering flowering period, the revent cotton from early death. d potassi period in ingredient

关 键 词：转基因抗虫棉 基肥 追肥 叶面喷肥 皮棉产量 

分 类 号：S562[农业科学—作物学]