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以阿月浑子为试材,对于育苗期间容易出现的各种缺素症状进行了营养元素喷施试验。结果表明:当幼苗叶片由正常的绿色转变成病态的红褐色时,磷酸二氢钾有很好的防治作用,当浓度0.5%时,发病率仅为1.50%,比对照低13.50%,当浓度为1%时,发病率为零,两个处理与对照相比差异极显著;当幼苗叶片由绿色转变成病态的淡黄色时,氯化锌和硫酸铁均有很好的防治效果,0.1%和0.2%各微量元素处理中,浓度为0.1%时发病率分别为2.00%和3.00%,比对照分别低14.5和13.5个百分点,浓度为0.2%时发病率分别为1.00%和2.50%,比对照分别低15.5和14个百分点,与对照相比均为差异极显著。
Taking pistachio as test material, the nutrient element spraying test was carried out for various kinds of deficiency symptoms prone to appear during seedling raising. The results showed that potassium dihydrogen phosphate had a good control effect when the seedling leaves changed from normal green to sick reddish brown. When the concentration was 0.5%, the incidence was only 1.50%, which was 13.50% lower than that of the control. When the concentration Was 1%, the incidence was zero, and the difference between the two treatments was very significant compared with the control; zinc chloride and ferric sulfate had a good control effect when the seedling leaves changed from green to sick yellowish, and 0.1% And 0.2% of trace elements, the incidence rates were respectively 2.00% and 3.00% at the concentration of 0.1%, 14.5 and 13.5% lower than the control respectively, the incidence rates were 1.00% and 2.50% at the concentration of 0.2% Control were 15.5 and 14 percentage points lower, respectively, compared with the control were significantly different.