Results 101 to 110 of about 502 (154)

等高反坡台阶整地对不同耕作系统根土微生态的影响

open access: yesShuitu Baochi Xuebao
[目的] 为探究坡耕地等高反坡台阶整地对玉米连作和玉米—芸豆轮作系统根土微生态特征的影响。[方法] 以玉米—芸豆轮作为研究对象,玉米连作为对照,采用野外原位监测采样和室内试验分析相结合的方法,通过GC-MS和高通量测序技术分析作物根系分泌物和土壤微生物群落组成、结构特征,揭示坡耕地等高反坡台阶整地对玉米连作和玉米-芸豆轮作根系分泌物种类、含量和土壤微生物群落组成及多样性的影响。[结果] (1)根系分泌物相对含量变化在CRT措施上更为突出,在轮作模式中更为显著。(2) CRT2处理提高土壤微生物群落数量 ...
鲁连欣   +4 more
doaj  

[Identifying risk factors for acute graft-versus-host disease in patients with acute myeloid leukemia undergoing haploidentical hematopoietic stem cell transplantation]. [PDF]

open access: yesZhonghua Xue Ye Xue Za Zhi
Feng D   +17 more
europepmc   +1 more source

[Osteogenic Capacity and Mettl14 and Notch1 Expression of Adipose-Derived Stem Cells from Osteoporotic Rats]. [PDF]

open access: yesSichuan Da Xue Xue Bao Yi Xue Ban, 2021
Feng MG   +5 more
europepmc   +1 more source

[Expert Consensus on Tumor Mutational Burden for Immunotherapy in Lung Cancer]. [PDF]

open access: yesZhongguo Fei Ai Za Zhi, 2021
Chinese Society of Clinical Oncology   +3 more
europepmc   +1 more source

[Archaeological Research on Dental Caries]. [PDF]

open access: yesSichuan Da Xue Xue Bao Yi Xue Ban
Zhou X, Zhou J.
europepmc   +1 more source

不同耕作模式和生物炭添加对黑土区土壤氮磷转化及玉米生长的调控

open access: yesShuitu Baochi Xuebao
[目的] 为探究不同耕作模式和生物炭施加量对黑土区农田土壤氮磷转化和玉米生长发育的影响。[方法] 通过野外大田试验,设置2种耕作(深耕和浅耕)和5个生物炭添加处理(0,3,6,9,12 t/hm2),探究不同耕作模式和生物炭施加量对土壤氮磷组分、酶活性及玉米生理特性的综合影响。[结果] (1)深耕和浅耕配合施加生物炭可有效改善土壤结构,提高团聚体几何平均直径,降低破坏百分比,且深耕处理效果优于浅耕处理;(2)施加生物炭提高土壤氮磷组分、脲酶活性和碱性磷酸酶活性,施加9 t/hm2生物炭效果最好 ...
巩品祥   +5 more
doaj  

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