| Effects of different application proportion of organic manure and chemical fertilizer on fruit quality of Jun jujube, soil microorganism and properties |
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| DOI：10.7606/j.issn.1000-7601.2017.05.27 |
| Key Words: Jun jujube microbial community soil respiration soil bulk density fruit quality |
| Author Name | Affiliation | | MUHTAR Zari | Institute of economic forest， Xinjiang Academy of Forestry Sciences， Urumqi, Xinjiang 830063, China | | ABDUKADIR Isah | Institute of economic forest， Xinjiang Academy of Forestry Sciences， Urumqi, Xinjiang 830063, China | | ZHAO Lei | Institute of economic forest， Xinjiang Academy of Forestry Sciences， Urumqi, Xinjiang 830063, China | | TAO Xiu-dong | Institute of economic forest， Xinjiang Academy of Forestry Sciences， Urumqi, Xinjiang 830063, China | | SHI Yan-jiang | Institute of economic forest， Xinjiang Academy of Forestry Sciences， Urumqi, Xinjiang 830063, China | | WU Zheng-bao | Institute of economic forest， Xinjiang Academy of Forestry Sciences， Urumqi, Xinjiang 830063, China |
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| Abstract: |
| 10 years old Jun jujube tree was used as research object. Field experiment was conducted to study the effects of organic manure and chemical fertilizers on the soil bacteria, fungi and actinomycetes, soil respiration rate, bulk density and pH value in Jun jujube orchard, the fruit quality and leaf-fruit ratio of Jun jujube and other indicators. The results showed that the number of bacteria, fungi and actinomycetes in the soil showed a gradual increase with the increase of organic manure and chemical fertilizer usage in compound fertilizer, and the effect of increasing organic fertilizer on the increase of soil microbial community was obvious higher than that of chemical fertilizers. The soil respiration rate of T12(Organic fertilizer：8 kg·plant-1; N:450 g·plant-1; P:300 g·plant-1; K:300 g·plant-1) was highest, and the soil respiration rate was 3.03±0.02 μmol·m-2·s-1 at fruit enlargement stage and 2.24±0.02 μmol·m-2·s-1 at maturity stage, 71.0% and 86.2% higher than the control, respectively. The soil bulk density was the lowest in the soil treated with T4i(organic ferbilizer: 8 kg·plant-1; N:150 g·plant-1; P:100 g·plant-1; K:100 g·plant-1), and the soil bulk density was 1.36±0.02 g·cm-3, which was 0.11 g·cm-3 lower than that of the control. The content of soil organic matter increased with the increase of the proportion of organic fertilizer, and decreased with the increase of the proportion of chemical fertilizer. With the increase of the proportion of organic fertilizer, the pH value of alkaline soil decreased gradually, while the effect of chemical fertilizer on alkaline soil pH was not significant. The effects of different application proportion of organic manure and chemical fertilizers on the soluble sugar content of jujube fruits were not obvious, but the contents of available titratable acid and the ratio of sugar and acid had a certain degree influence. The content of Vc in fruits of the fertilization treatment was significantly higher than that in CK, and the content of Vc in fruits was increased with the increasing of amount of organic-inorganic fertilizer. The results also showed that there was no significant difference between T3 and T5, T6, T4 and T7, T8 and T9 and T10 in the treatment. In a word, the application of organic-inorganic fertilizer with reasonable proportion has great application prospects for the sustainable development of Jun jujube industuy in arid semi-arid areas. |
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