本文選題：鹽堿土 + 溶磷菌�。� 參考：《中國土壤與肥料》2017年05期

【摘要】：為緩解不溶性磷酸鹽累積造成的鹽堿土壤板結(jié)問題,從江蘇濱海鹽堿土壤中篩選到一株具有較強溶磷能力的真菌菌株SM-1,并初步鑒定為Apophysomyces sp.,同時考察了木醋液對該菌生長及溶磷效果的影響。結(jié)果表明,木醋液的添加能夠顯著影響菌株SM-1的生長,添加量為0.1%的木醋液是其最適宜的生長濃度。菌株SM-1對不同磷源有著不同的分解能力,其中對磷酸三鈣的分解能力最佳,培養(yǎng)基中水溶磷含量由93 mg·L~(-1)提高到246.9 mg·L~(-1)。木醋液對供試磷源沒有分解效果,但添加木醋液則能夠顯著提高菌株對磷礦粉的分解能力,培養(yǎng)基中水溶磷含量由79 mg·L~(-1)提高到115.3 mg·L~(-1),而對磷酸三鈣的分解能力與單獨接入菌株SM-1的效果相當(dāng)。這預(yù)示著菌株SM-1與木醋液混合使用在改善鹽堿化土壤肥力方面具有很好的應(yīng)用前景。
[Abstract]:In order to alleviate the problem of saline alkali soil compaction caused by the accumulation of insoluble phosphate, selected from Jiangsu coastal saline soil to fungal strain SM-1 strain has strong capacity of dissolving phosphorus, and was identified as Apophysomyces sp., we also investigated the effect of wood vinegar on growth and phosphorus dissolving effect of the bacteria. The results showed that wood vinegar the addition can significantly affect the growth of strain SM-1, adding 0.1% wood vinegar is the most suitable growth concentration. Strain SM-1 has a decomposition ability to different phosphorus sources, the calcium phosphate decomposition ability of the best base, water soluble phosphorus content by 93 Mg - L~ (-1) to improve the training 246.9 Mg - L~ (-1). The tested phosphorus source without decomposition effect of wood vinegar, but add wood vinegar can significantly improve the decomposition ability of strains for phosphate rock, medium water soluble phosphorus content from 79 mg L~ medium (-1) increased to 115.3 Mg - L~ (-1), and to three phosphoric acid The decomposition ability of calcium is similar to the effect of SM-1 alone. This indicates that the combination of strain SM-1 and wood vinegar has a good application prospect in improving saline alkali soil fertility.

【作者單位】： 江蘇省灘涂生物資源與環(huán)境保護重點建設(shè)實驗室;南京野生植物綜合利用研究院;金陵科技學(xué)院園藝學(xué)院;南京大學(xué)鹽生植物實驗室;
【基金】：江蘇省自然科學(xué)基金面上項目(BK20141064,K20151098) 江蘇省灘涂生物資源與環(huán)境保護重點建設(shè)實驗室開放基金(JLCBE14003) 中國科學(xué)院土壤環(huán)境與污染修復(fù)重點實驗室開放基金(SEPR2014-04)
【分類號】：S156.4

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