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本试验研究了紫色土pH 对枳砧、红桔砧和香橙砧伏令夏橙春梢叶片矿质元素含量的影响。结果表明,枳砧吸收K,Mg,Mn,Cu,B,Al 等矿质元素高于红桔砧和香橙砧,尤以Cu,B 最多。但在吸收Ca、Na,Fe 等矿质元素时,则显著低于后两种砧木。N,P,S,Zn 等无差异。香橙砧吸收Ca,Na 高于红桔砧,其余无差异。叶片矿质元素与土壤pH 呈回归关系的有:N(幂函数),Ca(直线),S(幂函数),Na(抛物线),Fe(幂函数),Mn(抛物线),Ca(反抛物线),B(抛物线),Zn(反抛物线),Al(反抛物线)。无线性关系的有P、K,Mg。试验植株除Fe 外,未见其他缺素或中毒症状。但与通用的营养诊断标准比较,含Na 过量,含Cu,Mg 太低。
In this study, the effects of purple soil pH on the contents of mineral elements in leaves of summer orange were studied in the paper. The results showed that the mineral elements such as K, Mg, Mn, Cu, B and Al absorbed by the lotus root were higher than the red anvil and orange anvil, especially Cu and B. However, the absorption of Ca, Na, Fe and other mineral elements, then significantly lower than the latter two kinds of rootstocks. N, P, S, Zn and other no difference. Orange anvil absorbs Ca, Na higher than the red orange anvil, the rest no difference. The relationship between mineral elements and soil pH is as follows: N (power function), Ca (straight line), S (power function), Na (parabola), Fe (power function), Mn (parabola), Ca , B (Parabola), Zn (Parabola), Al (Parabola). There is P, K, Mg in the non-linear relationship. In addition to Fe test plants, no other signs of deficiency or poisoning. However, compared with the general nutrition diagnostic criteria, containing excessive Na, Cu, Mg is too low.