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为研究施肥对侧柏苗木抗旱性的影响 ,采用不同氮素水平和施肥方法培育侧柏播种苗木 ,并且用所培育的苗木进行造林试验 ,研究养分对于侧柏苗木抗旱性的影响 .结果表明 :适量高氮水平能够增加苗木体内的叶绿素、可溶性糖以及矿物质含量 ,改善苗木的渗透调节能力和气孔调节作用 ,提高水分利用效率 .指数施肥方法有利于苗木对养分的吸收 ,提高了肥料的利用效率 ,使苗木体内的矿质元素增加 .秋季施肥不影响苗木木质化 ,却提高了苗木体内氮素和可溶性糖的含量
In order to study the effect of fertilization on the drought resistance of Platycladus orientalis seedlings, we planted Platycladus orientalis seedlings with different nitrogen levels and fertilization methods, and the effects of nutrient on the drought resistance of Platycladus orientalis seedlings were studied.The results showed that: Appropriate high levels of nitrogen could increase chlorophyll, soluble sugar and mineral content in seedlings, improve osmotic adjustment and stomatal regulation of seedlings, and improve water use efficiency. Exponential fertilization is beneficial to the nutrient absorption of seedlings and the utilization of fertilizers Efficiency, so that the seedling body mineral elements increased.Flower fertilizer does not affect the lignification of seedlings, but increased seedling nitrogen and soluble sugar content