江汉平原棉麦套种方式下小麦对养分的利用效率  

Nutrient Use Efficiency of Wheat in Cotton-Wheat Interplanting System in Jianghan Plain

作　　者：胥顺发 童军 杨利[3] 丁亨虎 吴家琼 刘克芝 符家安 付勇 白淑萍 李生勇 

机构地区：[1]湖北省潜江市积玉口农业技术服务中心,湖北潜江433128 [2]湖北省土壤肥料工作站,武汉430070 [3]湖北省农业科学院植保土肥研究所,武汉430064 [4]湖北省潜江市农业局,湖北潜江433100

出　　处：《湖北农业科学》2012年第14期2938-2942,共5页Hubei Agricultural Sciences

基　　金：国家测土配方施肥资金补贴项目(CNCT09-32);国际植物研究所(IPNI)中国项目部项目(IPNI-Hubei-38)

摘　　要：利用"3414"肥料试验,研究了江汉平原棉麦套种方式下小麦对养分的利用效率。结果表明,江汉平原小麦NPK配施增产效果最好,增产量和增产率分别为1 838.7 kg/hm2和79.3%,每千克养分可增产小麦6.7kg;NP、NK、PK配施,以NP配施的产量最高,NK配施的产量次之,PK配施的产量最低,研究区域N是影响小麦产量的重要因子。The nutrient use efficiency of wheat in cotton-wheat interplanting system in Jianghan plain was studied using ＇3414＇ fertilizers tests. When N, P, and K fertilizers were applied evenly, wheat had best yield-increasing effect, the pro- duction increased and increasing rate were up to 1 838.7 kg/hm2 and 79.3% respectively. Among the combined application treatments of N and P, N and K, P and K, the yield of wheat was highest in N and P combined application treatment, then N and K, the lowest was P and K. N fertilizer was the most important factor affecting wheat yield in Jianghan plain.

关 键 词：江汉平原 小麦 “3414”肥料试验 养分利用效率 

分 类 号：S572.106.2[农业科学—烟草工业]