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长武县王东沟试验区年降水587mm,年平均气温9.1℃,无霜期17天,土壤为黑垆土和黄墡土,质地为中壤或轻壤偏中,耕层容重约1.3,总孔隙度47.5—56.0％,田间最大持水量22.0—26.6,含有机质0.99％,全氮0.081％,碱解氮40.8ppm,速效磷2.9ppm,速效钾168ppm,无灌溉条件。结合试区的投入条件,应用了湿润年份产量350kg优化栽培模式。 (?)=344.01+38.98x_1-15.36x_2-76.40x_3
The annual precipitation of Wangdonggou experimental area in Changwu County is 587mm with an annual average temperature of 9.1 ℃ and frost-free period of 17 days. The soil is black loessial soil and yellow loamy soil, and the texture is mid-level or light-loamy. The tiller weight is about 1.3 and the total porosity is 47.5 -56.0%, the maximum water holding capacity in the field was 22.0-26.6, organic matter 0.99%, total nitrogen 0.081%, alkaline nitrogen 40.8ppm, available phosphorus 2.9ppm, available potassium 168ppm, no irrigation condition. Combined with the conditions of the trial area, the application of the humid annual yield of 350kg optimized cultivation mode. (?) = 344.01 + 38.98x_1-15.36x_2-76.40x_3