| Microbial fertilizer and organic fertilizer on soil improvement effect of plastic shed watermelon |
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| DOI：10.7606/j.issn.1000-7601.2017.03.34 |
| Key Words: microbial fertilizer organic fertilizer Bacillus amyloliquefaciens soil quality watermelon |
| Author Name | Affiliation | | GU Xin | Agricultural College of Ningxia University, Yinchuan, Ningxia 750021, China | | SUN Quan | Agricultural College of Ningxia University, Yinchuan, Ningxia 750021, China | | WANG Rui | Agricultural College of Ningxia University, Yinchuan, Ningxia 750021, China | | WANG Jing | Agricultural College of Ningxia University, Yinchuan, Ningxia 750021, China | | ZHANG Jia-qun | Agricultural College of Ningxia University, Yinchuan, Ningxia 750021, China |
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| Abstract: |
| In order to solve the major problems such as poor soil fertility, soil obstacles from continuous watermelon cultivation in semi-arid area in Ningxia, a field experiment was carried out to study the effect of microbial fertilizer and organic fertilizer on soil quality with watermelon planted in the plastic shed. The results showed that, compared with CK, organic fertilizer combined with microbial fertilizer could reduce the soil bulk density and soil pH, increase soil field capacity and soil porosity. In particular, surface soil pH values of B+M treatment (biological organic fertilizer cooperated with microbial fertilizer) and S+M treatment (soybean cake powder cooperated with microbial fertilizer) were reduced by 5.66%～9.45% and 2.24%～2.54% respectively, compared with CK. The content of soil organic matter, available nitrogen, phosphorus and potassium was increased by 84.98%, 68.05%, 586.11% and 80.11%, respectively, and soil salt was also increased in biological organic fertilizer. The activity of soil urease, sucrase, alkaline phosphatase and catalase was enhanced by 180.00%～220.00%, 467.80%～703.39%, 190.91%～245.45% and 18.46%～21.80%, respectively, in B+M treatment, and 90.00%～150.00%, 154.24%～174.58%, 0.00%～163.64% and 19.30%～20.97%, respectively, in S+M treatment. The organic fertilizer combined with microbial fertilizer could significantly increase the quantity of soil bacterium and actinomycete, but decrease the quantity of fungus. The soil bacterium of B+M and S+M treatments was increased by 303.92%～339.23% and 135.29%～203.92%. The quantity of actinomycete was increased by 225.00%～270.00% and 30.00%～92.50% and the fungus was decreased by 54.12%～56.47% and 44.71%～45.88%, respectively. Based on these results, the best measures for soil quality improvement in watermelon field was biological organic fertilizer combined with the microbial fertilizer of Bacillus amyloliquefaciens. |
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