本文選題：玉米秸稈 + 發(fā)酵　； 參考：《灌溉排水學(xué)報(bào)》2017年12期

【摘要】：為探索發(fā)酵玉米秸稈施加到鹽堿土后對(duì)土壤肥力指標(biāo)的影響,將未發(fā)酵的玉米秸稈作為對(duì)照,采用盆栽試驗(yàn)方法對(duì)比分析了不同比例(1∶1、2∶1、3∶1、6∶1)秸稈和污泥混合發(fā)酵的玉米秸稈分別以不同用量(1.25、2.50、3.75、5.00 g/kg)施加到鹽堿土后土壤肥力指標(biāo)的變化。結(jié)果表明,施加發(fā)酵后的玉米秸稈,土壤有機(jī)質(zhì)、速效鉀質(zhì)量分?jǐn)?shù)顯著增加,土壤速效氮和速效磷質(zhì)量分?jǐn)?shù)有所降低。經(jīng)比較分析,施加2.50 g/kg發(fā)酵比例為2∶1的玉米秸稈對(duì)土壤肥力指標(biāo)及土壤酶活性的影響最為顯著,其中,土壤微生物量碳、氮分別較原土提高了0.90倍、1.07倍;土壤堿性磷酸酶、脲酶、纖維素酶、過(guò)氧化氫酶分別較原土提高54.47%、37.00%、33.82%、59.77%。
[Abstract]:In order to explore the effect of fermented corn straw on soil fertility, unfermented corn straw was used as control. Pot experiment was used to compare and analyze the change of soil fertility index after different ratio of 1: 1: 2: 1: 1: 1: 6: 1) straw and corn straw fermented by sludge were added to saline-alkali soil with different dosage of 1.25 ~ 2.50 ~ 3.75 ~ 5.00 g 路kg ~ (-1) 路kg ~ (-1) ~ (-1) ~ (-1) ~ (-1) ~ (-1) ~ (-1) ~ (-1) ~ (-1) ~ (-1) respectively. The results showed that the content of soil organic matter and available potassium increased significantly and the available nitrogen and phosphorus content of soil decreased after fermenting. By comparison and analysis, the effect of corn straw with the ratio of 2.50 g/kg to 2:1 on soil fertility index and soil enzyme activity was most significant. Among them, soil microbial biomass carbon and nitrogen increased by 0.90 times and 1.07 times respectively compared with the original soil, and soil alkaline phosphatase was also increased by 0.90 times and 1.07 times than that of the original soil, respectively. Urease, cellulase and catalase increased 54.47% and 37.00% and 33.82%, respectively, compared with the original soil.
【作者單位】： 內(nèi)蒙古科技大學(xué);包頭市輻射環(huán)境管理處;暉澤水務(wù)(青州)有限公司;
【基金】：內(nèi)蒙古自治區(qū)自然科學(xué)基金項(xiàng)目(2016MS0405,2016MS0221) 內(nèi)蒙古科技大學(xué)產(chǎn)學(xué)研合作培育基金項(xiàng)目(2016CXY03)
【分類號(hào)】：S156.4;S158
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本文編號(hào)：2033404