| Effects of application of fertilizer on soil and qrowth of the replanted apple in Weibei highland orchard |
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| DOI：10.7606/j.issn.1000-7601.2009.01.12 |
| Key Words: apple replant problem fertilization effect P fertilizer Saizhong-28 |
| Author Name | Affiliation | | FAN Hongke | Department of Horticulture ，Agricultural College, Shihezi University, Shihezi, Xinjiang 832003, China | | DU Zhihui | College of Horticulture, Northwest A & F University, Yangling, Shaanxi 712100, China | | WU Daiyan | Shaanxi Saizhong Biological Science and Technology Co.，Weinan, Shaanxi 714000 | | LEI Xinle | Plant Protection Station of Weinan, Weinan, Shaanxi 714000, China |
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| Abstract: |
| With the purpose of resolving the problem of apple replant by means of fertilzing, an experiment was carried out in a pot and field at the Baishui Apple Station of Northwest A &F University in 2006~2007 to study the effects of P fertilizer, and Saizhong-28 on the soil nut rients, microorganisms, soil saplings, root activi-ty, plant height and leaf area of young trees. The results showed that the effects of Saizhong- 28 treatments (500
g per tree) were significant in improving soil nut rients, enzy me, ameliorating soil microbial population struct ure, and promoting plant growth, which was similar to that in the non- continuous cropping fields. Under the treat ment of Saizhong- 28(250 g per tree)plus P fertilizer (500 g per tree and 1000 g per tree), the function of reducing replanted hazards w ere comparatively increased ，and the most determined items w ere relatively higher than that of CK, but the effect w as limited. Taking soil effect and apple grow ing factors into account，the apple replant problem could be resolved partly by means of Saizhong-28 treatments(500 g per tree). |
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