溶磷真菌及其组合对复垦土壤磷解析和转化的影响

发布时间：2018-04-30 12:28

本文选题：溶磷真菌 + 不同溶磷真菌组合　；参考：《灌溉排水学报》2017年07期

【摘要】：为了探索溶磷真菌在复垦土壤上对磷的作用效果,通过盆栽油菜试验,研究了黑曲霉(Aspergillus niger)、青霉(Penicillium)、被孢霉(Mortierella)及其组合对复垦土壤磷解析特性及无机磷转化的影响。结果表明,施用溶磷真菌可以增加复垦土壤有效磷、磷酸酶的量。溶磷真菌及其组合处理复垦土壤有效磷、磷酸酶量分别比基质处理(M)增加了58.6%~158.9%和3.7%~87.8%。施用有机肥可以明显改善复垦土壤的解析特性;被孢霉、被孢霉+青霉、黑曲霉+青霉、被孢霉+黑曲霉+青霉处理的土壤最大吸磷量都显著小于基质处理(M);不同处理复垦土壤吸附常数范围在0.036~0.069之间,溶磷真菌处理土壤磷吸附常数与基质处理(M)差异不显著;各处理复垦土壤磷平均解吸率在21.14%~34.57%之间,其中黑曲霉+青霉处理(Z2+Z3)复垦土壤平均解吸率最大,为34.57%。溶磷真菌对复垦土壤O-P、Fe-P、Al-P影响较小,对复垦土壤无机磷转化影响最大的是Ca2-P和Ca10-P,溶磷真菌可以抑制土壤中外来磷源向Ca10-P的转化,增加Ca2-P的量,溶磷真菌Z2+Z3处理Ca2-P的量最高,为28.73 mg/kg。综上,施用溶磷真菌可以增加复垦土壤有效磷量和提高磷素的有效性,有利于复垦土壤的熟化;黑曲霉+青霉处理(Z2+Z3)对复垦土壤解析特性及无机磷转化影响最大,为试验最佳处理。
[Abstract]:In order to explore the effect of phosphate solubilizing fungi on the soil on reclaimed soil, the effects of Aspergillus niger (Aspergillus Niger), Penicillium (Penicillium), Aspergillus niger (Mortierella) and its combination on the phosphorus analysis and inorganic phosphorus transformation in reclaimed soil were studied. The results showed that the application of phosphate solubilizing fungi could increase the soil of reclaimed soil. The amount of phosphatase and phosphatase. The amount of phosphate solubilizing fungi and their combinations treated soil available phosphorus, the amount of phosphatase increased by M and the application of organic manure in 58.6%~158.9% and 3.7%~87.8%. could obviously improve the analytical characteristics of the reclaimed soil; the soil of spores, sporomyces, Penicillium, Aspergillus niger + Penicillium, Aspergillus niger + Aspergillus niger + Penicillium The absorption of phosphorus was significantly less than that of matrix treatment (M), and the adsorption constants of soil reclaimed soil in different treatments were 0.036~0.069, and the difference between phosphorus adsorption constants and matrix treatment (M) was not significant. The average desorption rate of phosphorus in the treated soil was between 21.14%~34.57%, and the average desorption of soil reclaimed soil by Aspergillus niger + Penicillium treatment (Z2+Z3). The maximum rate was that the influence of 34.57%. phosphate solubilizing fungi on the reclaimed soil O-P, Fe-P, Al-P was smaller, and the greatest influence on the transformation of inorganic phosphorus in the reclaimed soil was Ca2-P and Ca10-P. The phosphorus soluble fungi could inhibit the transformation of the phosphorus source to Ca10-P in the soil, increase the amount of Ca2-P, and the amount of Z2+Z3 treatment Ca2-P of the phosphate solubilizing fungi was the 28.73 mg/kg., and the phosphate solubilizing fungus was applied. It can increase the amount of available phosphorus in the reclaimed soil and improve the availability of phosphorus, which is beneficial to the reclaimed soil, and the Aspergillus niger + Penicillium treatment (Z2+Z3) has the greatest influence on the analytical characteristics of the reclaimed soil and the transformation of inorganic phosphorus, which is the best treatment.

【作者单位】：安顺学院资源环境与工程学院;山西农业大学资源环境学院;
【基金】：国家自然科学基金项目(31272257) 贵州省科技厅、安顺市人民政府、安顺学院三方联合基金项目(黔科合LH字(2016-7280号)) 山西省科技攻关项目(20121101009-4)
【分类号】：S154.3

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