摘要
采用传统统计和地统计相结合的方法,对面积约200 hm^2的孟酄村葡萄园0～30 cm土壤养分进行了空间变异特性和分区平衡施肥技术研究。结果表明,土壤N、P、Mn、Zn、S变异较大,测试值变异系数在35.1%～63.6%之间。土壤N、Mn含量空间分布趋势以大块状变异为主,具有较强的渐变性分布规律。而土壤P、K、Zn、B含量空间分布则以小块状变异为主。基于土壤养分空间分布规律的分区平衡施肥技术的应用,能够大幅度增加葡萄产量,显著提高经济效益。分区平衡施肥与常规施肥相比,葡萄增产幅度为13.7%～14.8%,增收幅度为17 040～17 820元/hm^2。
Spatial variability and regionalized balanced fertilization technology of soil nutrients in a grape region with an area of 200 hm2 was studied using geo-statistics.The results showed that the grape region was widely variation in N,P,Mn,Zn and S,the C.V.was 35.1%to 63.3%.Spatial distribution map of soil nutrient content showed that soil N,Mn contents were changed with big blocks,soil P,K,Zn,B contents were changed with small blocks.With regionalized balance fertilization technology on grape,yield increased by 13.7% to14.8%,economic profit by 17 040 to 17 820 RMB yuan/hm2.
出处
《中国农学通报》
CSCD
北大核心
2010年第3期202-205,共4页
Chinese Agricultural Science Bulletin
基金
天津市农业科学院院长基金项目"葡萄种植区平衡施肥管理技术及地下水硝酸盐污染研究"(06018)
中加合作(IPNI)项目"天津农业持续发展中的菜田土壤养分管理及蔬菜合理施肥技术研究"(Tianjin-2008)
关键词
土壤养分
空间变异
平衡施肥
葡萄
soil nutrient
spatial variability
balanced fertilization
grape
