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缺钾是造成前几年杨村柑桔场椪柑果实变小,果皮紧薄光滑、裂果、树体抗病力下降,因果柄患炭疽病所致的采果前落果相当严重,致产量和品质降低的原因之一。从1974年开始,杨村柑桔场在大面积椪柑园施用氯化钾,纠正上述不良现象,取得了良好的效果。本试验通过施用不同种类和数量的钾肥,了解其对柑桔炭疽病较严重的低产椪柑园的产量、品质和抗病力的影响,探索在红壤低丘陵坡地柑园条件下,较为经济合理的钾肥施用量。
Potassium deficiency is caused by a few years ago Yangcun citrus fruit Kusakatzinen smaller, thin smooth skin, fruit cracking, tree resistance decreased, causal treatment of anthracnose caused by the fruit before the harvest is very serious fruit drop, resulting in yield and quality One of the reasons for the decrease. Since 1974, Yangcun Citrus Farm has been using potassium chloride in a large area of citrus orchards to correct the above-mentioned undesirable phenomena and achieved good results. In this experiment, by applying different types and amounts of potash fertilizer, the effect of citrus anthracnose on the yield, quality and disease resistance of citrus orchards in low-yield citrus orchards was studied. It is more economical and reasonable Potash fertilizer application.