渭北高原不同施肥方案土壤效应及对再植苹果生长发育影响.docVIP

渭北高原不同施肥方案土壤效应及对再植苹果生长发育的影响 樊红科杜志辉2*吴岱彦3雷新乐4 （1石河子大学农学院园艺系，新疆石河子832003；2西北农林科技大学园艺学院，陕西杨凌 712100； 3 陕西赛众生物科技有限公司，陕西渭南 714000） 摘 要：为了给通过施肥解决苹果连作障碍问题提供借鉴,于2006-2007年在采用，对：施用g /株抗重茬肥可以促进植株生长施用g /株抗重茬肥、500g /株和g /株磷肥,处理后多数测定指标都相对高于连作幼树对照。综合考虑土壤效应和苹果生长因素,老果园再植以施用g /株用量的抗重茬肥可以较好的解决苹果再植障碍问题。 关键词：苹果；连作障碍;施肥效应；磷肥；抗重茬肥 Effects of application of fertilizer on soil and growth of the replanted apple in Weibei highland orchard Fan Hongke1 Du Zhihui2 Zhao Zhengyang2* Wu Daiyan3 (1 Department of Horticulture, Agricultural College of Shihezi University, Shihezi, Xinjiang 832003, China; 2 College of Horticulture, Northwest A F University, Yangling, Shanxi 712100, China; 3 ShanXi SaiHong biology science and technology Co.Weinan,Shanxi 714000,China ) Abstract：With the purpose of resolving the problem of Apple Replant by means of fertilizing , the experiment was carried out in a pot and field at the BaiShui orchard station of Northwest A F University in 2006-2007 to study the effects of P fertilizer, and SaiZhong-28 on the soil nutrients, microorganisms, soil saplings, root activity, plant height, leaf area of the young tree. The results showed that the effects of SaiZhong-28 treatments (500 g/ per) were significant in improving soil nutrients, enzyme, ameliorating soil microbial population structure, and promoting plant growth, which was similar to that in the no continuous cropping fields. Under the treatment of SaiZhong-28（250 g/per）and 500 g/per and 1000 g/per P fertilizer, the effect of reducing replanted hazards were comparatively increased , most determined items were relatively higher than that of CK, but limited effect.Taking into account, the apple replant problem could be resolved partly by means of SaiZhong-28 treatments (500 g/ per) . Keywords : apple ; replant problem; fertilization effect ; P fertilizer; SaiZhong – 28 中图分类号： 文献标识码：A 文章编号：0513-353X 陕西渭北地带是的苹果生区[1-3 ]，主要表现为根系生长发育不良、植株矮小、叶呈莲座状、叶片小、新梢细短、结果迟、品质差、苗木死亡率高, 严重影响老果园的就地更新