氮、磷、钾优化配比在薄壳山核桃果实及叶片中分配效应研究

为提高薄壳山核桃种植的经济效益,以4年生果树为研究对象,以“3414”优化施肥方案为基础,研究氮、磷、钾配比对目标林木的作用效应、分配规律的影响。结果表明：氮、磷协同作用是关键,制约着氮、磷、钾在果仁及叶片中的分布,其中氮的效果更为明显,磷其次,综合以处理14、5、6效益最佳,即每株薄壳山核桃施用尿素804 g、磷酸二胺362～724 g、硫酸钾320～640 g,不仅能促进树体健康可持续生长发育,并且显著提高种植者的经济效益,在实际生产中有一定推广价值。

Studies of nitrogen, phosphorus and potassium optimum mixture ratios on distributional effects in Carya illinoinensis fruits and leaves

In order to improve the economic benefits of Carya illinoinensis planting, this experiment took 4-year-old fruit trees as the research object, based on the "3414" optimized fertilization program, to study the effects of nitrogen, phosphorus and potassium ratios on the role of the target forest trees, the distribution of the law. The results showed that: the synergistic effect of nitrogen and phosphorus is the key, which restricts the distribution of nitrogen, phosphorus and potassium in the kernels and leaves, of which the effect of nitrogen is more obvious, followed by phosphorus , and the recommended treatment of 14,5 and 6 was the optimal fertilization scheme, that is, 804 g of urea, 362-724 g of diamine phosphate and 320-640 g of potassium sulfate were applied per Carya illinoinensis,which not only promotes the tree''s healthy and sustainable growth and development, but also significantly improves the economic benefits of the growers, which has certain popularization value in actual production.