摘要
通过连续5年对早实核桃幼树生长、结果形态指标的调查研究,分析提出了早实核桃幼树丰产的树相指标。通过比较不同肥料配比、不同留果量及枝条短截程度对生长、结果的影响,探讨了早实核桃幼树期树相指标调控的方法。
The growth and fruiting features were invested consistently for five years in young precocious walnut, and then the indexes of tree structure for its highyield were pointed out. The regulating protocol to the indexes was studied by comparing the effect of fertilizer ratio, crop density, and pruning cut length on growth and fruiting.
出处
《河北农业大学学报》
CAS
CSCD
北大核心
2004年第6期30-33,共4页
Journal of Hebei Agricultural University
基金
河北省自然科学基金资助(303228)
关键词
早实核桃
幼树
丰产
树相
调控
precocious walnut
young trees
highyield
indexes of tree structure
regulating
