發(fā)布時(shí)間：2023-04-01 14:39

　　秸稈直接還田增加了農(nóng)作物病蟲害幾率,高溫堆肥可殺死害蟲蟲卵。因此,秸稈堆肥后還田是秸稈綜合利用的重要途徑之一。采用微宇宙法,以秸稈堆肥產(chǎn)品為供試材料,探究秸稈堆肥還田對土壤酶活性、玉米幼苗生長指標(biāo)、玉米幼苗酶活性和根系形態(tài)的影響。結(jié)果表明,秸稈堆肥激活土壤脲酶、蔗糖酶、過氧化氫酶和堿性磷酸酶活性,增加玉米幼苗株高、鮮重和干重;秸稈堆肥抑制玉米幼苗的過氧化物(POD)酶活性,激活玉米幼苗過氧化氫(CAT)酶和超氧化物歧化(SOD)酶活性;秸稈堆肥浸提液可顯著提高玉米幼苗根系形態(tài)各項(xiàng)指標(biāo)。因此,秸稈堆肥還田激活土壤酶活性、改善了作物生長生理代謝、促進(jìn)玉米根系發(fā)育,研究成果為秸稈堆肥還田提供了重要理論支撐。

【文章頁數(shù)】：9 頁

【文章目錄】：
1 Materials and methods
    1.1 Experimental materials
    1.2 Pot experiment
    1.3 Measurement of soil enzyme activities
    1.4 Measurement of growth index in maize seedlings
    1.5 Measurement of enzyme activities in maize leaves
    1.6 Morphological analysis of maize seeding roots
    1.7 Data analysis
2 Results and analysis
    2.1 Effect of straw compost on soil enzyme activities
    2.2 Effect of straw compost on growth index of maize seedlings
    2.3 Effect of straw compost on maize seedling enzyme activities
    2.4 Extraction solution of straw compost product on root morphology
3 Discussion
4 Conclusion



本文編號：3777322