]*>","")" /> Simulation Analysis of Dry Matter and N,P2O5,K2O Accumulation of Hybrid Cotton in South Xinjiang

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Simulation Analysis of Dry Matter and N,P2O5,K2O Accumulation of Hybrid Cotton in South Xinjiang

LIU Wei-yang;ZHENG De-ming;JIANG Yi-juan;FAN Ye-kuan   

  • Received:2009-03-25 Revised:2009-03-25 Online:2009-03-25 Published:2009-03-25

南疆滴灌高产杂交棉花干物质和氮磷钾积累模拟分析

柳维扬;郑德明;姜益娟;范业宽   

  1. 塔里木大学植物科技学院,新疆阿拉尔,843300;华中农业大学资环学院,湖北武汉,430070;塔里木大学植物科技学院,新疆阿拉尔,843300;华中农业大学资环学院,湖北武汉,430070

摘要: 研究南疆覆膜滴灌条件下高产杂交棉干物质和氮磷钾养分的积累规律.结果表明皮棉3 000 kg/hm2高产条件下,棉花总干物质和生殖器官干物质积累速率最快时间在出苗后的107~108和117~118 d;棉株吸收N、P2O5、K2O的快增期分别在出苗后66~153、55~126和62~126 d.高产杂交棉地上部总干物质和生殖器官干物质积累量分别为102.51和62.27 g/株,吸收积累氮磷钾养分的总量换算为N、P2O5、K2O分别为515.3、126.4和591.9 kg/hm2,每生产100 kg皮棉需吸收氮磷钾比例N∶P2O5∶K2O=1∶0.25∶1.15.