No matter what the soil moisture treated, being with waterlog in normal paddy or upland condition in GCRPS field, once nitrate as nitrogen fertilizer source. N2O emission increased remarkably.
不论是旱种还是水田，只要增加硝态氮源，土壤n2o的排放就极显著增加。
Sink: source ratio could be affected by plant density or fertilizer supply level.
库源比既受肥料水平的影响，也受密度的影响。
Animal manures were the main source of organic fertilizer, but their application for farming lands were limited due to a lot of pathogens, parasite ova and toxicant contained.
尽管畜禽粪便是有机肥料的主要来源，但是其携带的大量病原菌、寄生虫卵和有毒物质是影响畜禽粪便农田利用的主要原因。
The influences of fertilizer, pesticides, utilization and management of agricultural biomass waste, and soil erosion on the water source were analyzed.
分析了流域农业生产管理中的化肥和农药施用，农业生物质类废弃物利用管理和水土流失对水源污染的影响。
The results of nitrogen fertilizer residual effect under conventional and hole-source pattern showed that there had no significance difference on statistical analysis .
孔源及常规施肥方式下氮肥后效田间试验表明，二者之间无统计上显著差异。
Livestock source, municipal source and fertilizer were the mostly sources in the Yuqiao Reservoir periphery area.
畜禽粪便、生活污水和化肥流失是库区非点源污染物的主要来源。
It is important to quantitatively characterize biological nitrogen fixation (BNF) of soybean for farmland fertilizer management and non-point source pollution control.
定量描述大豆生物固氮量对于施肥管理以及农业非点源污染控制具有十分重要的意义。
Of three nitrogen fertilizer types, the amide-form nitrogen source was better to the formation and accumulation of gliadin as well as its four fractions.
比较而言，酰胺态氮素更有利于醇溶蛋白及各组分的形成与积累。
A lot of fertilizer applications have become an important source of non-point source pollution in rural area, which affects the safety of surface water for drinking.
化肥的大量施用已成为农村面源污染的一个重要来源，直接影响到农村村镇地表饮用水安全。
A lot of fertilizer applications have become an important source of non-point source pollution in rural area, which affects the safety of surface water for drinking.
化肥的大量施用已成为农村面源污染的一个重要来源，直接影响到农村村镇地表饮用水安全。
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