干旱地区农业研究2011，Vol.29Issue(6)：130-134,5.
氮磷钾配比对南疆红富士苹果产量和品质的影响
Different ratios of N, P and K fertilizers on yield and quality of Fuji apple in south Xinjiang
摘要
Abstract
Three-factor five-level quadratic regression was used to study the effects of different ratios of N, P and K fertilizers on the yield and quality of fifteen-year old Fuji apple trees in south Xinjiang. The results showed that the order of effects on yield were potassium > nitrogen > phosphorus and they were all positive. N and P, P and K were positively interacted, while N and K were negatively interacted. With apple production 4 325.18 kg/667m2 as the goal, the optimal combination of N, P and K were respectively 27.06 kg/667m2, 17.80 kg/667m2 and 2.06 kg/667m2. The influence on quality showed that high N can increase fruit weight but can not either improve its shape or enhance the accumulation of content in fruit. Appropriate P and K can improve fruit color, while too high or too low N can not improve fruit hardness. N and K can promote significantly sugar accumulation in fruit. Controlling P and N supplying can reduce the fruit acidity to some extent. High K treatment produce high Vc content.关键词
苹果/产量/氮磷钾配比/品质Key words
apple/ yield/ ratio of nutrients/ quality分类
农业科技引用本文复制引用
孙霞,柴仲平,蒋平安..氮磷钾配比对南疆红富士苹果产量和品质的影响[J].干旱地区农业研究,2011,29(6):130-134,5.基金项目
新疆自治区重大专项"果树营养特性与水肥耦合技术研究"(200731136-5) （200731136-5）
新疆自治区土壤学重点学科建设项目 （）
