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通过米醋与氮肥二因子回归正交旋转组合试验设计,建立产量函数模型。模型解析结果为:米醋与氮素化肥配合使用有明显的交互作用,即随着米醋浓度的提高,相应减少化肥用量,产量递增幅度大,经济效益高。产量高的最佳组合为亩施尿素30kg,米醋浓度0.2％;地力基础好,不施用追肥,米醋浓高提高到0.5％,大叶秋菠菜亩产达3600kg。
Through the two-factor regression orthogonal rotation combination experiment design of rice vinegar and nitrogen fertilizer, the yield function model was established. The analytical results of the model are as follows: There is a clear interaction between the use of rice vinegar and nitrogenous fertilizer, that is, as the concentration of rice vinegar increases, the amount of chemical fertilizer to be used is correspondingly reduced, the yield increases rapidly and the economic benefit is high. High yield of the best combination of urea 30kg mu, rice vinegar concentration of 0.2%; foundation good, without topdressing, vinegar enrichment high to 0.5%, big leaf autumn spinach mu yield of 3600kg.