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This paper studied the photosynthetic,edible-vine yields and nitrate accumulation of vine-vegetable sweetpotato character by using the(NH_4)_2SO_4,NaNO_3 and Nitrification inhibitor DCD. 研究了铵态氮肥(NH4)2SO4、硝态氮肥N aNO3及硝化抑制剂双氰铵(DCD)对叶菜用甘薯光合特性、茎叶产量以及硝酸盐含量的影响。
Synergistic Effect of a Novel Urease Inhibitor LNS and a Nitrification Inhibitor DCD on Urea-N Transformation and Vegetable Growth 新型脲酶抑制剂LNS与双氰胺配合施用对菜田土壤尿素氮转化及蔬菜生长的影响
nitrification inhibitor DCD 硝化抑制剂
The nitrification inhibitor(DCD) could reduce the nitrate accumulation of NH_4NO_3 and NH_4Cl and have a more significant effect on NH_4NO_3. 硝化抑制剂双氰铵(DCD)能降低NH4NO3和NH4Cl的硝酸盐积累,对NH4NO3作用较为明显。
The goal of the study was to control the high N2O emissions by adding nitrification inhibitor dicyandiamide (DCD) during the development of cracks. 通过模拟对土壤进行复杂的、动态的水分含量变化过程中试验,探讨双氢胺抑制剂对其N2O释放的影响。
In order to evaluate the feasibility of addition of urease inhibitor (hydroquinone,HQ) and nitrification inhibitors(DCD) into urea solution applied in drip fertigation,a pot experiment with maize as a test crop was conducted under greenhouse condition. 本研究通过在滴灌栽培条件下将脲酶抑制剂氢醌(简称HQ)、硝化抑制剂双氰胺(简称DCD)和尿素在玉米盆栽试验中进行配施,以探求HQ和DCD在滴灌施氮肥条件下应用的可行性。
The effect of DMP-D as nitrification inhibitors were studied by house culture in different soil. For comparison, dicyandiamide (DCD), a chemical nitrification inhibitor was also used in the experiment. 通过室内培养试验对新合成的一种硝化抑制剂DMP-D与双氰胺的硝化抑制效果进行比较，以及DMP-D对土壤微生物及氮的硝化作用的研究，结果表明：
Nitrification inhibitors,HQ, DCD and TU, could all decrease nitrate contents in pakchoi significantly in three stages of pakchoi. But the effect varies with the test soil. 三种硝化抑制剂HQ(氢醌)、DCD(双氰胺)和TU(硫脲)在蔬菜的不同时期均不同程度的降低了蔬菜硝酸盐含量，但是不同供试土壤上的试验反映的情况不完全一致。
The effect of ammoxidized lignin (AOL) used as nitrification inhibitor was studied by house culture. 通过室内培养实验对氨氧化木质素(AOL)的硝化抑制作用进行了探讨。
The result of the experiment indicated that AOL could be used as nitrification inhibitor. 相应地，在开始阶段硝态氮质量分数也要比未加硝化抑制剂处理的低。
Urea+nitrification inhibitor DMPP(Entec46),Urea+nitrification inhibitor DCD(U+DCD) and organic-inorganic fertilizer(OIF) decreased significantly nitrate content of rape. 尿素+硝化抑制剂DM PP(En tec46)、尿素+硝化抑制剂DCD(U+DCD)和有机无机复混肥(O IF)3种氮肥显著降低了油菜硝酸盐含量。
The results showed that all the test nitrification inhibitors could significantly decrease the nitrate content in soil and pakchoi during whole growth stage,among which,DCD had the best effect,but the effect was differed on different soil types. 结果表明;3种硝化抑制剂在试验的各个时期均不同程度地降低了土壤和小白菜的硝酸盐含量;其中以双氰胺的效果最好.;但不同供试土壤条件下的试验结果不完全一致
The effects of 3 kinds of nitrification inhibitors application,Hydroquinone(HQ),Dicyandiamide(DCD) and Thiourea(TU),on yield and some nutrition qualities of pakchoi with plot experiment in 2 kinds of vegetable soils and at 2 kinds of growing seasons. 通过田间小区试验,在2种土壤和2个季节条件下研究了3种硝化抑制剂,氢醌(HQ),双氰胺(DCD)和硫脲(TU),对小白菜产量和某些品质的影响。
The application of several nitrification inhibitor registrated in Japan is described. Development future of slc v releasing chemical fertilizer is also introduced. 介绍经日本注册的几种硝化抑制剂的使用情况,及缓效化肥的发展前景。
In the end the ammonium nitrogen content of the treatment with AOL or DCD was towered above the one without those nitrification inhibitors, and the nitrate nitrogen content of the former was less than the latter. 在相同条件下,分别加AOL和DCD处理的铵态氮质量分数都要比未加硝化抑制剂处理的高; 相应地,在开始阶段硝态氮质量分数也要比未加硝化抑制剂处理的低。
But there were not the same tendency in different soils and for different nitrification inhibitors,the yield of pakchoi was higher in red vegetable soil than that in alluvial vegetable soil. DCD had the best effect among 3 nitrification inhibitors. 3种硝化抑制剂均可不同程度地提高小白菜的产量;也以双氰胺的效果最好;且在红菜园土上的增产效果要比冲积菜园土上显著.
Nitrification inhibitors will prevent N losses only when conditions favoring unwanted transformation of NH4 coincide with the effective period of the inhibitor. 只有使利于NH4转化的条件与抑制剂的有效期相一致时，硝化抑制剂才阻止氮素损失。
Use of nitrification inhibitors can also effectively suppress conversion of NH4 to NO3. 使用硝化抑制剂也能有效地抑制NH4向NO3的转化。
In addition, applying nitrification inhibitors could increase vitamin C and soluble sugar contents in pakchoi, and promote N and P uptakes by pakchoi. 另外，3种硝化抑制剂还能显著提高小白菜的维生素C和可溶性糖含量，增强对N，P养分的吸收。
Nitrification inhibitors not only increase the efficiency of nitrogen fertilizer,reducing environmental pollution,but also improve vegetable quality. 硝化抑制剂不仅能够提高蔬菜氮肥利用率和减少氮肥对环境的污染,有的能改善蔬菜品质。

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