Results 51 to 60 of about 506 (108)
The Effectiveness of Culture in the Era of Social Transformation [PDF]
, 2018 departmental bulletin ...
15206, Li, Haiquan, 李, 海泉
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[Research progress in the application of magnetic solid phase extraction based on carbon based magnetic materials in food analysis]. [PDF]
Se Pu, 2021 Liao Y, Huang X, Wang Z, Gan R.
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Response of Runoff and Sediment Yield from Maize Slope Farmland in Karst Areas to Slope Gradient [PDF]
[Objective] To elucidate the responses of surface runoff, subsurface runoff, and underground runoff hydrological pathways to slope in maize sloping farmland in Karst regions.
DAI Quanhou +4 more
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Shuitu Baochi Xuebao, 2019 为研究鉴选不同质地土壤秸秆还田适宜的秸秆腐熟剂，于2017—2018年在西辽河平原灌区中壤土和砂壤土秸秆还田配施人元腐熟剂和中农绿康腐熟剂，以秸秆还田不施腐熟剂为对照，共设置6个处理，测定玉米秸秆腐解率、玉米产量、玉米根系特性和土壤化学性状，研究不同秸秆腐熟剂对玉米产量及土壤特性的影响。结果表明：不同质地土壤2种腐熟剂秸秆腐解率间无显著差异；中壤土2年各处理玉米产量及根系特性、土壤化学性状均表现为人元腐熟剂 > 中农绿康腐熟剂 > 秸秆还田不施腐熟剂 ...
于宗波 +5 more
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Shuitu Baochi Xuebao, 2020 针对水稻生产中存在秸秆处理不当以及化肥用量增多等问题，以山东省济宁市稻麦轮作体系下水稻"圣稻18号"为研究对象，通过田间试验设置3个处理：常规施肥，小麦秸秆不还田（CK）；常规施肥+小麦秸秆全量还田（T1）；常规施肥量的85%+小麦秸秆全量还田（T2），深入探究秸秆还田与化肥减施对不同生育期水稻生长、光合参数和产量的影响，为制定合理的水稻种植措施提供理论依据。结果表明，稻麦轮作体系下秸秆还田不利水稻前期生长，但能显著提高水稻生长中、后期的生长指标，并增强水稻生长中、后期对氮、磷、钾等养分的吸收 ...
李思平 +6 more
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A Probe into Ecological Countryside Construction in China [PDF]
, 2011 生态农村建设是当前建设社会主义新农村的重大举措,论文从农村的生态环境、基础条件和农民意识等方面,探讨了农村生态环境存在的问题,指出了加快农村生态建设的重要性,提出了加强乡镇企业环境综合整治、完善体制机制建设、发展生态农业、开展生态文明教育等措施。Ecological countryside is the construction of new socialist countryside major step,paper from the countryside ecological ...
刘立军 +4 more
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Shuitu Baochi Xuebao, 2017 在种还分离模式下采用尼龙网袋法对玉米秸秆还田进行田间原位模拟，比较不同秸秆还田量在不同还田深度下对土壤总有机碳、微生物量碳、纤维素酶活性和过氧化氢酶活性的影响。试验设置秸秆还田量0（R0），0.44%（R1），0.88%（R2）和1.32%（R3）4个水平和3个还田深度0—15，15—30，30—45 cm交叉处理。结果表明：还田1年时，在0—15 cm土层，土壤总有机碳、微生物量碳、纤维素酶活性和过氧化氢酶活性均随秸秆还田量增加而提高，且R3处理提升效果最显著，分别达到30.98%，101.16 ...
刘 龙, 李志洪, 赵小军, 崔婷婷
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秸秆还田结合氮肥减施对东北黑土细菌真菌多样性影响 [PDF]
Straw return to the soil and chemical fertilizer application reduction and efficiency increase are so important that we analyzed the bacterial and fungal diversity under different straw return and chemical fertilizer treatments.
Wang, Junkai
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The existing disease diagnosis techniques are more or less harmful to the human body, so a simple and non-invasive disease screening technology is urgently needed.
Ren, Xinyu
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Economic evaluation of biomass pyrolysis liquefaction technology based on life cycle assessment [PDF]
In the context of the "dual carbon" goals, exploring the production of bio-gasoline and bio-diesel through a biomass energy and pyrolysis liquefaction production chain holds significant potential.
GU Minyan +5 more
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