Shuitu Baochi Xuebao, 2005 根据山西省农业统计资料,结合实地调查和土壤测定数据,采用典型农户问卷调查的方式,研究了全省和3个典型县域农田施肥状况、养分平衡和土壤养分变化趋势。农户施肥状况调查结果表明,2000年山西省平均N肥用量为181.8Nkg/hm2,P肥用量为93.7P2O5kg/hm2,K肥用量为41.9K2Okg/hm2,N∶P∶K为1∶0.52∶0.23。从化肥的投向来看,水地的施用量明显高于旱地,蔬菜和果树的施用量高于粮食作物和其它经济作物。从3个典型县域农田养分平衡来看,1980年后随着N、P肥施用量的增加 ...
陈明昌 张强 程滨 杨治平 焦晓燕 周怀平
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不同施肥模式对菜-稻轮作农田土壤磷素径流损失与表观平衡的影响
Shuitu Baochi Xuebao, 2019 采用田间小区定位试验（2015—2016年）研究了自然降雨条件下农户习惯性施肥（T1）、减量施肥（T2）及优化施肥（T3）不同施肥模式对太湖流域菜—稻轮作农田土壤磷素径流流失特征和磷素表观平衡的影响。结果表明：菜—轮作农田地表径流排水主要分布于强降雨（梅雨季、台风季）集中的水稻生长季，与降雨量呈显著线性正相关关系。磷素径流流失也集中在水稻季，各处理条件下，其流失量占周年流失总量的比例达74.75%~81.46%。农户习惯性施肥模式（T1）处理条件下，蔬菜季径流总磷平均浓度（0.55 mg/L ...
郭智 +6 more
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[Poricoic acid A alleviates dextran sulfate sodium-induced colitis in mice by regulating AMPK/mTOR-mediated autophagy and inhibiting intestinal epithelial cell apoptosis]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoQiao T +7 more
europepmc +1 more source
[Efficient separation of gossypol from cotton kernels with copper mediated magnetic molecularly imprinted polymer]. [PDF]
Se PuYang SL +5 more
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[Controlled synthesis of high-capacity bisphenol A molecularly imprinted polymer and its application to the detection of environmental water samples]. [PDF]
Se PuCheng Y, Lin YL, Tian MM.
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Zhongshan Daxue xuebao. Yixue kexue ban, 2009 【目的】 探讨左旋精氨酸(l-Arg)对大鼠中期肺动脉高压(PH)的防治作用及机理。【方法】 将18只雄性SD大鼠随机分为3组,对照组(C组,n = 6)。PH组(M组,n = 6)。l-Arg + PH组(L组,n = 6)。于M组和L组用野百合碱(MCT)一次腹膜腔注射诱导PH模型,L组每天进行腹膜腔注射l-Arg。 21 d 后用右心导管法测定右心室收缩压(RVSP);用化学比色法检测血浆中一氧化氮(NO)水平;用Hydroethidine进行肺灌注测量肺组织氧自由基(O2。誗-)的产量。【结果】
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[Interpretation of the "Expert consensus on the management of neonatal parenteral nutrition (2025)"]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiLin XZ +8 more
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[Resveratrol protects barrier function of mouse brain microvascular endothelial cell monolayers with oxygen/glucose deprivation and PM<sub>2.5</sub> exposure by maintaining mitochondrial dynamics balance]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoQin M +9 more
europepmc +1 more source
[Determination of 26 herbicide residues in soil， sediment， and surface water samples using modified QuEChERS method combined with ultra-high performance liquid chromatography-tandem mass spectrometry]. [PDF]
Se PuZhao L, Ma L, Huang LQ, Chen JB, Zhu WF.
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[<i>Poria cocos</i> polysaccharide alleviates cyclophosphamide-induced intestinal barrier dysfunction and inflammation in mice by modulating gut flora]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoZhang Y +10 more
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