Results 61 to 70 of about 1,403 (114)

滴灌施氮对春玉米氮素吸收、土壤无机氮含量及氮素平衡的影响

Shuitu Baochi Xuebao, 2018
为解决吉林省半干旱区滴灌施肥条件下氮肥合理施用问题，通过2年(2015—2016年)田间试验，研究了覆膜滴灌条件下施氮量(0，70，140，210，280，350 kg/hm2)对春玉米产量、氮素吸收利用、土壤剖面无机氮含量变化及氮素平衡的影响。结果表明：施氮量在70～210 kg/hm2范围内玉米产量随施氮量的增加显著增加，当施氮量超过210 kg/hm2后，处理间产量无显著差异；将玉米产量(y)与施氮量(x)拟合，得出最佳施氮量分别为195.1，201.0 kg/hm2 ...
侯云鹏, 孔丽丽, 李 前, 尹彩侠, 秦裕波, 于 雷, 王立春, 谢佳贵   +7 more
doaj  

添加木质素和生物炭对土壤氮、磷养分及水分损失的影响

Shuitu Baochi Xuebao, 2019
研究添加木质素和生物炭对土壤氮、磷养分及水分损失的影响，降低土壤改良剂使用成本，增加造纸黑液中木质素的利用途径，促进木质素在土壤改良中的应用。试验选取生物炭改良剂与木质素作为对比，通过土柱淋溶和静态吸收法，研究不同添加量（质量分数为0，1%，2%，4%）的木质素和生物炭对土壤氮磷养分、水分、脲酶活性以及pH的影响。土壤中添加木质素和生物炭均能减缓pH变化程度；抑制土壤脲酶的活性，且在添加氮肥后的1~20天抑制效果明显，其抑制效果与添加量呈正相关。添加量为1%，2%，4%的木质素和生物炭与对照组相比 ...
宋彬, 孙茹茹, 梁宏旭, 胡玥, 彭湃, 佘雕   +5 more
doaj  

[Exercise-induced hyperinsulinism: genetic basis and clinical management]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Zhang QT, Hou L.
europepmc   +1 more source

[Dietary secoisolariciresinol diglucoside alleviates chronic kidney disease in offspring rats caused by maternal trans-fatty acid exposure by regulating the Bcl-2/Bax/caspase-3 signaling axis]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Ma S, Chen M, Wu T, Zhao W.
europepmc   +1 more source

[Analysis of influencing factors on secondary olfactory dysfunction in different types of chronic sinusitis]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Han L, Wang J, Qiao X.
europepmc   +1 more source

[Expert consensus on enteral nutrition treatment for burned children (2025 edition)]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Pediatric Burn Study Group of Chinese Burn Association, Burn Trauma Professional Committee of Chinese Medical Women's Association, Pediatric Burn and Plastic Surgery Professional Committee of Beijing Research Society for Human Body Injury Repair.   +2 more
europepmc   +1 more source

基于RZWQM2模型的减氮滴灌棉田水氮制度优化

Shuitu Baochi Xuebao
目的基于北疆滴灌棉田田间试验数据得到适宜性较好的RZWQM2模型参数，探究棉花减氮稳产的最优减氮及灌水制度。方法利用田间试验的3个灌溉定额（400、444、488 mm）和4个施氮水平（294、336、378、420 kg/hm²）处理的实测数据对RZWQM2模型进行率定，利用率定好的RZWQM2 模型模拟10种不同的灌溉定额（320、340、360、380、400、420、440、460、480、500 mm）与8种不同减氮水平（常规施氮、减氮4%、减氮8%、减氮12%、减氮16%、减氮20 ...
李博, 王春霞, 汪思佳, 杨跃发, 张景瑞   +4 more
doaj  

[Biological activities of <i>Polygonatum</i> polysaccharides and their roles in the prevention and treatment of related diseases]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Guan P, Li Z, Wang Q, Ding H, Chen L, Qin H.   +5 more
europepmc   +1 more source

[<i>Danzhi Jiangtang</i> Capsule improves renal vascular endothelial function in rats with diabetic nephropathy by downregulating the Notch1/NICD/MAML1 signaling pathway]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Zhu S, Ma J, Zheng Y, Wu C, Zhao J, Li L, Wang L, Zhou X.   +7 more
europepmc   +1 more source

[Predictors of sepsis-induced coagulopathy in children and development of a prediction model]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Maihemuti M, Simijiang Y.
europepmc   +1 more source