本文選題：醋糟菌糠　切入點(diǎn)：土壤酶活性　出處：《中國生態(tài)農(nóng)業(yè)學(xué)報(bào)》2016年12期 　論文類型：期刊論文

【摘要】：為研究醋糟菌糠作為一種生物肥料對(duì)土壤肥力的影響,為解決食用菌菌糠對(duì)環(huán)境污染及其有效利用提供科學(xué)依據(jù),本文通過田間試驗(yàn),對(duì)玉米、高粱、糯玉米3種作物基施醋糟菌糠后不同生育期的土壤脲酶、蔗糖酶和過氧化氫酶活性,細(xì)菌、放線菌和真菌數(shù)量,及微生物量碳、氮含量進(jìn)行測(cè)試。研究結(jié)果表明:1)醋糟菌糠顯著提高了作物根際土壤細(xì)菌、放線菌和真菌的數(shù)量。在作物整個(gè)生育期,加入醋糟菌糠的土壤細(xì)菌數(shù)量比對(duì)照提高32%~54%;放線菌數(shù)量在成熟期提高明顯,玉米田土壤放線菌數(shù)量增幅最大,為101%;真菌數(shù)量變化總體趨勢(shì)呈現(xiàn)先升高后下降的趨勢(shì)。2)醋糟菌糠的施入增加了作物根際土壤脲酶、過氧化氫酶、蔗糖酶的活性。種植高粱、玉米和糯玉米土壤的脲酶活性增長(zhǎng)率分別為239%、189%和185%;3種作物的土壤過氧化氫酶活性在抽穗期最高,最大增長(zhǎng)率為40%;3種作物的土壤蔗糖酶活性在不同生育期變化趨勢(shì)不同,玉米各生育期土壤蔗糖酶活性變化較為穩(wěn)定,其增長(zhǎng)率分別為38%、28%、48%。3)醋糟菌糠的施入增加了作物根際土壤微生物碳氮的含量,不同生育期3種作物的土壤微生物碳含量增幅為58.10~407.67 mg·kg-1,微生物氮含量增幅為11.98~27.55 mg·kg-1。由此可見,醋糟菌糠的施用可以增強(qiáng)土壤生產(chǎn)力的可持續(xù)性,從而達(dá)到保護(hù)和改善土壤環(huán)境的效果。同時(shí)該研究也為醋糟菌糠的有效利用提供了一定的科學(xué)依據(jù)。
[Abstract]:In order to study the effect of vinegar residue on soil fertility as a kind of biological fertilizer, and to provide scientific basis for solving the environmental pollution and its effective utilization of edible fungus bran, corn and sorghum were studied in this paper. Soil urease, sucrase and catalase activities, bacteria, actinomycetes and fungi, and microbial biomass carbon, were obtained from three crops of glutinous corn. The nitrogen content was tested. The results showed that the rice residue significantly increased the number of bacteria, actinomycetes and fungi in the rhizosphere of crops. The quantity of actinomycetes increased significantly in maturation stage, and the actinomycetes in maize field increased the most, and the soil actinomycetes in corn field increased significantly, compared with the control, and actinomycetes increased significantly in the corn field. The total number of fungi increased first and then decreased. 2) the application of vinegar grains increased the activities of urease, catalase and sucrase in rhizosphere soil. The soil catalase activity of maize and waxy corn soil increased by 23918.9% and 1855% respectively at heading stage, and the maximum growth rate of soil catalase activity at heading stage was 40%. The variation trend of soil sucrase activity in different growth stages was different. The change of soil sucrase activity was relatively stable at different growth stages of maize, the growth rate of which was 38% and 28% and 48% respectively) the application of vinegar grains increased the content of microbial carbon and nitrogen in the rhizosphere soil. The increase of soil microbial carbon content and microbial nitrogen content in three crops at different growth stages were 58.10 ~ 407.67 mg 路kg ~ (-1) and 11.98 ~ 27.55 mg 路kg ~ (-1) respectively. Therefore, the effect of protecting and improving soil environment can be achieved, and this study also provides a scientific basis for the effective utilization of vinegar residue.
【作者單位】： 山西農(nóng)業(yè)大學(xué)資源環(huán)境學(xué)院;山西水利職業(yè)技術(shù)學(xué)院;日本W(wǎng)襝鼗肪晨蒲Ч恃芯恐行，

本文編號(hào)：1585909