潘冬梅,吕新,李富先,杨雷.棉花膜下滴灌条件下水肥一体化协调管理模式研究[J].干旱地区农业研究,2007,(3):224~226 |
棉花膜下滴灌条件下水肥一体化协调管理模式研究 |
Cotton’s fertilization model under the condition of drip irrigation and plastic mulch in Xingjiang |
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DOI:10.7606/j.issn.1000-7601.2007.03.46 |
中文关键词: 棉花 膜下滴灌 施肥 协调管理 |
英文关键词:cotton drip irrigation fertilization coordinated management |
基金项目:兵团农业科技攻关计划项目“数字化农业关键技术研究与示范”; 国家863计划专项“棉田变量施肥系统应用示范课题”(2003AA209090) |
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中文摘要: |
摘要:在膜下滴灌棉田,随灌水设置0,90,180,270,360 kg/hm2共5个N肥用量处理,观测不同N用量下棉花生长和干物质积累情况,尝试建立推荐施肥决策支持系统。结果表明:N 270 kg/hm2处理最好,施肥模型为y=3271.82+14.46x-0.0312x2(R=0.9604*),y籽棉产量,x滴灌棉田施N量。 |
英文摘要: |
We intercalate 5 treatments of N dosage which is 0,90,180,270,360 kg/hm2,to obsere the crop's growth and the accumulated material of these treatments in the drip irrigation cotton field,and establish the recommendatory-decision system tried.The result shows that the treatment 270 kg/hm2 is the best and we got the return model of the seed cotton yield(y) and the nitrogen fertilizer dosage(x),which is y=3271.82+14.46x-0.0312x2(R=0.9604*). |
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