花生的磷素营养特点一、花生的磷素营养需要量花生属豆科油料作物,籽实中脂肪和蛋白质含量丰富,而油分和蛋白质的形成、转化和累积,都有磷素直接参与,并起重要的促进作用。因此,花生对磷素的吸收量比一般作物为多,全株中尤以荚果需磷量最高。据1961-1962年的测定:宫家庄半蔓花生亩产荚果407.5-492斤时,总生物量为1175.7-1229.8斤,而磷素的总需要量为3.5-4.2斤,其中荚果的含量占52.6-55.7%;伏花生亩产荚果407-462.6斤时,总生物产量为815.8-1103.1斤,而磷素总需要量为2.1-2.4斤,其中荚果的需要量则占82.9-85.0%。由此看来,提高花生荚果的产量和品质,在施肥上注意供给足够的磷素营养是很重要的。二、花生对磷素的吸收能力 Peanut phosphorus nutrition characteristics First, the peanut phosphorus nutrient requirements Peanut beans legume oil crops, seeds rich in fat and protein content, and oil and protein formation, transformation and accumulation, are directly involved in phosphorus, and from Important to promote the role. Therefore, the amount of phosphate absorbed by peanuts was higher than that of the normal crop, especially the pod had the highest phosphorus requirement in whole plant. According to the determination of 1961-1962: Gongjia Zhuang peanut peanut per acre pod 407.5-492 kg, the total biomass of 1175.7-1229.8 kg, while the total phosphorus requirement of 3.5-4.2 kg, of which pod content accounted for 52.6-55.7%. When the peanut yield per acre was 407-462.6 kg, the total biomass was 815.8-1103.1 kg, while the total phosphorus requirement was 2.1-2.4 kg, of which the pod requirement accounted for 82.9-85.0%. From this, it is important to increase the yield and quality of peanut pods and to be careful about supplying adequate amounts of phosphorus nutrition. Second, peanut absorption of phosphorus