不同类型土壤施肥对巫溪红三叶牧草产量和品质的影响

Effects of Fertilizer on Yield and Quality of Wuxi Red Clover on Three Types of Soil

测定了在不同pH值土壤条件下进行施肥处理对巫溪红三叶鲜草产量和营养品质的影响,结果表明:施肥显著提高牧草的产量和品质,在强酸性土壤上施用N60P120K135,巫溪红三叶鲜草总产量最高,高于对照185.0%;在酸性和中性土壤上施用N90P120K90鲜草总产量最高,分别高于对照115.0%和95.5%。施肥显著提高巫溪红三叶粗蛋白质含量,施用N60P60K90,强酸性土壤、中性土壤头茬草的粗蛋白质含量最高,分别高于对照113.1%和46.0%;但在酸性土壤上,施用N90P120K90的粗蛋白质含量最高,高于对照43.6%。

The effects of N,P,K fertilizer treatment and different pH value conditions for Wuxi red clover on the fresh forage yield and quality of Wuxi red clover were studied. The results showed that fertilization significantly improved the yield and quality of forage. The yield of fresh forage was highest and higher than that of control groups by 185.0% when using N60P120K135 in the heavy acid soil. The yield of fresh forage was higher than that of control groups by 115.0% and 95.5% respectively when using N90P120K90 in acid and neutral soil. Fertilization can also greatly increase the protein content of Wuxi red clover. The protein content is higher than that of control groups by 113.1%（ heavy acid soil ）and 46.0%（ neutral soil） respectively when using N60P60K90 during the early flower period. However, in acid soil the protein content is highest and higher than that of control groups by 43. 6%.