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笔者在青海灌淤栗钙土上采用三因素五水平回归设计,研究了活化泥炭与氮磷的适宜配比,并分析了三者对菜花产量的影响。结果表明,单施活化泥炭不能获得高产,与氮磷配合施用可以大大提高活化泥炭的增产效果。按活化泥炭500—860kg/亩,N20—34.4kg/亩、P_2O_520—30kg/亩,菜花产量可达2056—2286kg/亩,并且三者间呈现良好的交互效应。土壤有机质测定说明,亩用800kg左右的活化泥炭,可以使土壤有机质含量有所增加。因此,将活化泥炭与氮磷配合施用,既能高产,还能培肥地力,是农业生产中有效的增产措施。
The author used the three factors and five levels regression design to irrigate the chestnut soil in Qinghai to study the suitable proportion of activated peat and nitrogen and phosphorus and analyzed the influence of the three on cauliflower yield. The results showed that single application of activated peat could not obtain high yield, and the application of nitrogen and phosphorus could greatly increase the yield of activated peat. Activated peat 500-860kg / mu, N20-34.4kg / mu, P2O520-30kg / mu, cauliflower output up to 2056-2286kg / mu, and the three showed a good interaction effect. Determination of soil organic matter shows that about 800kg of activated peat acres, can increase the content of soil organic matter. Therefore, the activated peat and nitrogen and phosphorus with the application, both high yield, but also fertilize fertility, agricultural production is an effective measure to increase production.