摘要
通过叶分析研究了贺兰山东麓酿酒葡萄产区的葡萄植株叶全氮磷钾6～9月含量动态变化规律。结果表明:宁夏贺兰山东麓御马酿酒葡萄基地酿酒葡萄全生育期叶片氮素营养充足,而叶片磷钾生育后期供应不足,成为酿酒葡萄生育后期叶片生长量下降的主要原因;酿酒葡萄叶片氮磷钾动态变化揭示了对晚熟酿酒葡萄品种8月份应少量补充氮素,而8月末是磷、钾补充的关键时期;酿酒葡萄氮磷钾营养诊断的最适部位是叶柄,最佳营养诊断时期为8月份。
N,P,K coment in wine grape leaf in the eastern foot of HeLan Motmtain of Ningxia were analyzed in growing season. The result indicated that nitrogen in leaf is supplied sufficiently in the whole growing period. Yet phosphorus and potassium in leaf is supplied insufficiently especially in procreate growing period. Insufficient P and K nutrition lead to leaf weight decrease in the late growing season. The dynamic of NPK in wine grape leaf exhibit that a few quantity of N should be supplied for this serotinous variety in August. The key period for phosphorus and potassium fertilizing is the end of August. The petiole is he most suitable part for nutrients diagnosis of wine grape, and the end of August is the best phases for nutrient diagnosis of wine grape.
出处
《北方园艺》
CAS
北大核心
2007年第5期22-25,共4页
Northern Horticulture
基金
宁夏农牧厅优势特色农产品科技攻关资助项目
宁夏自治区科技攻关项目
宁夏自然科学基金资助项目(NZ0611)
关键词
叶片分析
营养诊断
需肥规律
需肥期
Leaf analysis
Diagnosis of nutrients
Rule of nutrition request
Time of nutrients request
