摘要
１９９１～１９９３年，在黔东南州黄砂泥、黄泥等１０个有代表性的土种上，不同生态条件下，采用回归设计，利用电子计算机技术对氮、磷、钾等养分进行了多年多点多因素多水平的水稻综合试验、示范研究，获得了不同气候条件下，不同地力水平的有代表性的不同最佳配方施肥方案。大田示范中，微机配方施肥与习惯施肥相比平均增产１２．７９％，平均每亩净增水稻６３．６ｋｇ，平均亩增纯收入５０．７４元。同时，还避免了偏施和盲目施用化肥的陋习，提高了化肥利用率，减少了化肥流失对环境造成的污染，取得了显著的经济和社会效益。
The experiment of N,P and K rutrient was conducted on rice
under different ecological environments and 10 types of typical soil(including the yellow sandy
clay soil and ycllow clay soil by regressive design in 1991～1993.After the data were
computerized in the light of regressive analysis,the varying optimum fertilization schemes
corresponding to different climates and soil fertility were acquire.Compiring the computerized
optimum fertilization with farmer's practice,the rice yield per mu was increased by
12.79%(e.g.63.6kg)in the field demonstration,and the net income per mu by 50.74 yuan.In the
meantime,the social benefit was notably gained by avoiding the incorrectness and blindness
the application of chemical fertilizer,raising the utilization ratio of
chemical
出处
《贵州农业科学》
CAS
1994年第4期24-29,共6页
Guizhou Agricultural Sciences
关键词
水稻
配方施肥
微机应用
rice
optimum fertilizer
computer application
