| Soil properties and fertilization in vegetable greenhouse at different ages |
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| DOI：10.7606/j.issn.1000-7601.2005.01.16 |
| Key Words: vegetable greenhouse soil property fertilization effect |
| Author Name | Affiliation | | GUO Wen-long | YI-ZHI Agricultural Secondary Specialized School of Shaanxi Province,Jingyang,Shaanxi 713702,China；College of Resources and Environmental Science,Northwest Sci-Tech University of Agriculture and Forestry,Yangling,Shaanxi,712100,China | | DANG Ju-xiang | YI-ZHI Agricultural Secondary Specialized School of Shaanxi Province,Jingyang,Shaanxi 713702,China | | LU Jia-long | College of Resources and Environmental Science,Northwest Sci-Tech University of Agriculture and Forestry,Yangling,Shaanxi,712100,China | | GUO Jun-wei | YI-ZHI Agricultural Secondary Specialized School of Shaanxi Province,Jingyang,Shaanxi 713702,China | | QUAN Ding-guo | Popularizing Centre of Agriculture Sci-Tech of Qianxian,Qianxian,Shaanxi 713300,China | | LIU Si-chun | College of Resources and Environmental Science,Northwest Sci-Tech University of Agriculture and Forestry,Yangling,Shaanxi,712100,China | | MA Qin-an | Popularizing Centre of Agriculture Sci-Tech of Yongshou,Yongshou,Shaanxi,713400,China |
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| Abstract: |
| In central Shaanxi, the soil properties and current fertilization in vegetable greenhouses at different ages were investigated and studied. The results showed that soil secondary salinization, acidification, available-potassium enrichment remarkably took place and became severe with increased greenhouse ages ;the contents of organic matter ,total nitrogen and alkali-hydrolyzable nitrogen were slightly low but the content of nitrate nitrogen was high; the contents of either the former or the latter did not regularly change with greenhouse ages; organic fertilizers were few and applied in small quantities, the rates of applied fertilizers sharply varied; partial fertilization in fertilizer kinds or quantity occurred; there existed improper fertilization structure, nutrient imbalance and poor fertilization procedures. So increasing total fertilizer amount, carrying out formulated fertilization, keeping nutritive balance, improving fertilization procedure and raising fertilizer use efficiency are put forward in the paper. |
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