| Effects of fertilization on continuous cropping obstacle in pepper |
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| DOI：10.7606/j.issn.1000-7601.2006.05.18 |
| Key Words: pepper continuous cropping obstacle fertilization effect K2SO4 chicken droppings NEB-26 |
| Author Name | Affiliation | | ZHAO Zun-lian | College of Horticulture Northwest A＆F University,Yangling,Shaanxi 712100,China | | SHI Lian-lian | Agricultural Extension Center of Baoji City,Baoji,Shaanxi 721001 China | | YAN Yu-rang | Agricultural Extension Center of Baoji City,Baoji,Shaanxi 721001 China | | GONG Zhen-hui | College of Horticulture Northwest A＆F University,Yangling,Shaanxi 712100,China | | WU Qing-qiang | College of Horticulture Northwest A＆F University,Yangling,Shaanxi 712100,China | | GUO Jian-wei | College of Horticulture Northwest A＆F University,Yangling,Shaanxi 712100,China |
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| Abstract: |
| With the purpose of resolving the problem of continuous cropping obstacle in pepper by means of fertilizing,the experiment was carried out in a field that had been continuously used to plant pepper for 6 years (2000～2005) in Qianyang County of Shaanxi Province to study the effects of potassium fertilizer,chicken droppings and NEB-26 on the chlorophyll content,net photosynthetic rate,plant height,leaf area index,fruit number per plant and yield of the variety "Shaanjiao2001".The results showed that the effects of 2 chicken droppings treatments(4 500 kg/hm2 and 3 000 kg/hm2) were significant in alleviating continuous cropping obstacle.The fruit number per plant was 6 and 5.5 more than CK respectively,and the fresh fruit yield was increased by 28.2% and 25.7% respectively.The yield of these 2 treatments was similar to that in the no continuous cropping fields.Under the treatment of 750 kg/hm2 K2SO4,the chlorophyll content,net photosynthetic rate and leaf area index were evidently increased,and the fruit number per plant and fresh fruit yield were increased by 2.3 and 12.5% respectively.However,the effects of 375 kg/hm2 K2SO4 treatment and NEB-26 treatment were not significant in most determined items. |
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