摘要
钾对杨梅产量和品质的影响仅次于微量元素硼。杨梅对N：P2O5：K2O的需要比例分别为1：0．5：2．69。浙江省杨梅主产区土壤（0-20cm）的全钾和速效钾含量分别为1．81-2．41g／kg和83-121mg/kg。施钾能显著提高杨梅产量和改善果实品质。株产50kg果实的杨梅树以施用1．0～1．5kg氯化钾并配施50g硼砂的效果较好，杨梅进行叶面施钾时以喷施0．5％KCl或0．5％磷酸二氢钾的效果较佳。
Among nutrient elements absorbed by red bayberry （Myrica rubra Sieb. et Zuca）, effect of boron on fruit yields and quality occupies first place, potassium took second place. Optimmn ratio of N： P2O5 ：K2O for red bayberry was 1：0.5：2.69. The contents of total and available K in the 0 ~ 20 cm depth in the main planting areas of red bayberry were 1.81 ~ 2.41 g/kg和83 - 121 mg/kg respectively. Application of potassium could significantly increase the fruit yield and improve fruit quality. For the trees with fruit yield of 50 kg, the effects of combined KC1 1.0- 1.5 kg and borax 50 g/tree on fruit yield and quality were best. When foliar application was carried out, the effects of foliar application of 0.5% KCl or 0.5% KH2PO4 on the yield and quality were best.
出处
《中国土壤与肥料》
CAS
CSCD
北大核心
2006年第5期46-48,共3页
Soil and Fertilizer Sciences in China
基金
浙江省科技攻关项目(2003C32029)
关键词
杨梅
钾素
产量
品质
red bayberry （Myrica rubra Sieb. et Zuca）
potassium
yield
quality
