【摘要】 钙镁磷肥的不同用量对花生各生育阶段从土壤中吸收N、P、K营养元素的作用不同.幼苗期,茎叶P/NPK比值表明在0.054~0.064范围较好,茎叶中N、K的含量以1 125 kg/ha磷肥为好.成熟期,茎叶磷含量随施用量增加而增高.第四纪红土红壤通过花生的种植,土壤有机质,土壤氮素和土壤PH值都有提高,尤其土壤容重明显降低.更多还原

【Abstract】 The variant levels of calcium magnesium phosphate affected absorption of N-P-K nutrient with evey peanut bearing state from soil.In the seedling period,the ratio within 0.054-0.064 was the best P/NPK in stem and leaves.Its N-K content was very well when the level of phosphate is 1 125Kg/ha.In the mature period,its P content raise with the quantity of phosphate raised.When the peanut planting on red soil of 4th surname,the organic matter,N nutrient and pH value increase and the unit weight of soil reduces.更多还原