摘要
应用二次通用旋转组合设计,在沙壤质棕漠土上进行了葡萄滴灌施肥条件下的氮、磷、钾配比试验,获得了相应的函数模型;通过对葡萄产量和经济效益的分析,得出了葡萄适宜的NPK滴灌用量配比,在葡萄萌芽—开花期滴灌追施氮、磷、钾的比例以N∶P2O5∶K2O=1∶0 26∶0 12为好,在葡萄果实生长期滴灌追施氮、磷、钾的比例以N∶P2O5∶K2O=1∶1 54∶1 97较佳。
By means of the quadratic universal rotatory combination design, corresponding function model was obtained by field experiment on ratio of top-dressing N, P, K for grape under the condition of drip fertilization. The optimum ratio of N∶P_2O_5∶K_2O for drip top-dressing N, P, K was 1∶0.26∶0.12 in vegetative stage and 1∶1.54∶1.97 in fruit-growing period.
出处
《土壤肥料》
CSCD
北大核心
2005年第3期42-44,共3页
Soils and Fertilizers
基金
国家科技攻关"西部专项"的部分内容(2002BA901-142 020 919 8A36)。
关键词
葡萄
滴灌施肥
NPK配比
grape
drip fertilization
drip top-dressing of N, P,K
