采用室内模拟土柱淋洗方法研究了无机复合肥、有机复合肥、猪粪堆肥和花生麸4种肥料单施和两两混施条件下氮磷在赤红壤中的淋失特征。结果表明,各处理总氮淋失率在43.2%~74.8%之间,总磷淋失率在0.01%~0.08%之间,赤红壤中肥料氮淋失严重,肥料磷淋失有限。肥料单施处理的无机氮淋失量和有机氮基本相近,肥料混施处理的无机氮淋失量远高于有机氮;各施肥处理磷的淋失均以颗粒磷为主。肥料混施显著增加铵态氮和无机氮淋失,减少有机氮和总氮淋失。猪粪与复合肥混施减少颗粒磷和总磷淋失 ...
曾曙才 +3 more
doaj
采用田间试验,研究了不施肥(CK)、常规施肥(CF)、90%常规施肥(90%CF)、80%常规施肥(80%CF)、控释复合肥(CRF)和有机—无机肥配施(MF)6种施肥处理对稻田径流和渗漏损失的影响。结果表明:水稻田面水总氮(TN)和铵态氮(NH4+—N)浓度在施肥后第2 d达到峰值,之后快速下降,第7 d后降至峰值的15%以下并趋于稳定,控制稻田氮素流失最关键的时间为施肥后1周。减量施肥可以有效降低田面水和渗漏水的氮素浓度。不同施肥处理(CK除外)TN径流损失量和氮素流失率分别为8.81~15.78 ...
李 +4 more
doaj
[Interpretation of the "Expert consensus on the management of neonatal parenteral nutrition (2025)"]. [PDF]
Lin XZ +8 more
europepmc +1 more source
[Expert consensus on enteral nutrition treatment for burned children (2025 edition)]. [PDF]
Pediatric Burn Study Group of Chinese Burn Association +2 more
europepmc +1 more source
[Exercise-induced hyperinsulinism: genetic basis and clinical management]. [PDF]
Zhang QT, Hou L.
europepmc +1 more source
[Efficacy and safety of super electroconvulsive therapy for treatment-resistant depression: a retrospective analysis of 292 cases]. [PDF]
An J, Chi Z, Zhao C, Li Y, Wang R, Hu Y.
europepmc +1 more source
[Application and research progress of metal-organic framework materials in skin repair]. [PDF]
Ma S, Wu W, Liu H, Liu M, Xing F.
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]
Zhu S +7 more
europepmc +1 more source
[Causes and prevention strategies of postoperative nausea and vomiting after orthognathic surgery]. [PDF]
Luo K +5 more
europepmc +1 more source
[Determination of ethylene oxide and acetaldehyde in petrochemical exhaust based on thermal desorption- gas chromatography-mass spectrometry]. [PDF]
Li YJ.
europepmc +1 more source

