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在二种强酸性、严重缺磷的土壤上，对一年生黑麦草做了磷肥和石灰用量的盆栽试验．结果表明：严重缺磷的土壤，施磷可成倍增加黑麦草产量；黄筋泥需磷量相对红砂土较高些．施磷量与收获后土壤速效磷含量与黑麦草产量密切相关，但土壤速效磷的等级指标，红砂土应比黄筋泥高些．石灰的增产作用远比磷肥低，增产效果还因施磷量不同而不同．在施石灰提高土壤ｐＨ达５．５的范围内，施磷量低的处理产量随石灰施用量的增加而增加；施磷量较高时，石灰的增产效果停留在低石灰用量上．
In two kinds of strongly acidic, severely phosphorus-deficient soils, potted experiments were conducted on annual ryegrass using phosphate and lime. The results showed that the soil phosphorus deficiency severely increased the yield of ryegrass by applying phosphorus, while the phosphorus demand of yellow gluten soil was higher than that of red sandy soil. The amount of phosphorus applied and the content of available phosphorus in soil were closely related to the yield of ryegrass. However, the index of soil available phosphorus was higher than that of yellow gluten soil. The effect of lime production is much lower than that of phosphate fertilizer, and the yield increase effect is also different due to the different phosphorus application rate. When lime was applied to increase the soil pH to 5.5, the treatment yield with low phosphorus application rate increased with the increase of lime application rate. When the phosphorus application rate was higher, the lime production efficiency stayed on the low lime dosage.