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1982—1985年,在白浆土的白浆层添加不同的改良物料并种植不同的作物(小麦、大豆、玉米)进行盆栽试验,其结果是不同的改良物料其效果不同,同一改土物料对不同作物的影响也不同。氮磷肥配合施用,可以显著提高白浆层土壤的生产力;对小麦、大豆来说,有机物料和氮磷肥表现出较好的联因效应,玉米施氮磷肥就表现出显著效果,但添加有机物料,反而使产量下降。加粘土调节白浆层土的机械组成,再配合施氮磷肥,有很好的增产效果,优于单施氮磷肥的处理。施用石灰,对大豆有良好的增产作用。麦秸还田必须配合施用氮磷肥。有机物料相比,腐殖土优于草炭,草炭优于麦秸。
In 1982-1985, pot experiment was carried out by adding different modified materials and planting different crops (wheat, soybean, corn) to the white pulp layer of albacol. The result was that the effect of different modified materials was different. The effects of different crops are also different. Nitrogen and phosphate fertilizers can significantly improve the productivity of the white soil layer. For wheat and soybean, organic materials and nitrogen and phosphorus fertilizers have a good effect of coupling effect, and nitrogen and phosphorus fertilizers of corn show a significant effect, but adding organic materials , But to reduce production. Adding clay to adjust the mechanical composition of white soil layer, coupled with nitrogen and phosphorus fertilizer, have a good yield, better than the single application of nitrogen and phosphorus treatment. The use of lime, soybeans have a good yield. Wheat straw must be used in conjunction with nitrogen and phosphorus fertilizer. Compared with organic material, humus soil is better than peat, and peat is better than wheat straw.