论文部分内容阅读
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。
From 1991 to 1993, on the 10 representative soil species, such as yellow sand mud and yellow mudstone of Qiandongnan Prefecture, under different ecological conditions, regression design was used and the nutrients such as nitrogen, phosphorus and potassium were studied by using computer technology for many years Point multi-factor multi-level comprehensive rice experiment, demonstration study, access to different climates under different levels of soil fertility typical representative of the best different fertilization program. Field demonstration, the microcomputer formula fertilization compared with the average yield of 12.79% increase, the average net increase of 63.6kg of rice per mu, the average increase of 50.74 yuan per mu net income. At the same time, it also avoids the bad habits of applying partial fertilizers and blindly applying fertilizers, increases the utilization rate of chemical fertilizers and reduces the pollution caused by the loss of chemical fertilizers, and has achieved remarkable economic and social benefits.