施钾对核桃钾素营养及粗脂肪含量的影响  

Effects of K Supply on Potassium Nutrition and Crude Fat Content in Walnut Varieties

作　　者：高同雨[1] 李天红[1] 张永 刘法英 田军 

机构地区：[1]中国农业大学农学与生物技术学院果树系,北京100094 [2]北京市门头沟区科技开发实验基地,北京102308

出　　处：《北方园艺》2007年第11期4-6,共3页Northern Horticulture

基　　金：北京市科技计划资助项目(Y0704002040691);北京市优秀人才资助项目(20051D0901701)

摘　　要：研究了西林2号和陕核1号核桃喷施硫酸钾对其果实钾素营养及种仁粗脂肪含量的影响。结果表明:喷施硫酸钾对青皮中钾和种仁粗脂肪最终含量影响不显著,但在油脂转化期,品种对其影响显著;在核桃果实生长期间,青皮中钾和种仁粗脂肪含量积累规律相似,且二者极显著正相关。钾肥效应主要是通过增产来提高单位面积的产油量;比较而言,西林2号更适合作为高油品种推广。xilin 2 # and shanhe 1 # among walnut varieties were used in the experiment with sprays of 0. 3% K2SO4, lipids in the kernel and potassium in the shuck was investigated. The results showed that spraying 0. 3% K2SO4 had no significant effects on the final contents of lipids in the kernel and of potassium in the shuck, but the varieties level of indexes in the two walnuts were significantly different during the fruit oil transforming phase. At the growth stage of walnut fruit, the regularity of accumulation of potassium in the shucks and liquids in the kernel was similar and there exists very significant positive correlation between them. Effect of potassium fertilizer was mainly increasing walnut yield and yet enhanced oil yield in unit area; by comparison, xilin 2 # was fit for popularizing as a high oil walnut variety.

关 键 词：核桃 钾 粗脂肪 相关分析 

分 类 号：S143.3[农业科学—肥料学] S662.1[农业科学—农业基础科学]