In drought soil, CCU has a better nutrient release characteristic than polymer coated urea.
CCU在干旱的土壤中表现出优于聚合物包膜肥料的养分释放特性。
Release features and surface topography of coated urea with rosin and tung oil as film-forming materials;
研究了化学镀锡预镀溶液的组成和工艺条件对镀层厚度和表面形貌的影响。
Experiments and researches are carried out on the nutrient release characteristics of polymer-sulphur coated urea (PSCU).
对聚合物硫包尿素(简称PSCU)产品的养分释放特性进行了试验研究。
For the paraffin wax -natural rosin coated urea, the ratio of paraffin wax to natural rosin is of major importance to the release rate.
就石蜡-天然松香包膜尿素而言，包膜层中石蜡和天然松香的配比是影响石蜡-天然松香包膜尿素养分释放速率的重要因素。
The slow-release character of the polymer-coated urea and the correlation between the slow-release property and coating material were researched.
重点研究了多组分聚合物树脂包膜尿素的缓释特性及其与膜材料之间的关系。
A study was conducted on the physical and chemical characteristics of coatings and mechanism of nutrient slow release of water-absorbent coated urea (WACU).
本文中作者对研发的一种保水缓释包膜尿素肥料的包膜物理化学特征，养分缓释机制进行了研究。
The result shows that the polymer-coated urea has excellent slow release property, it is capable to control the release rate of coated urea in the meantime.
研究结果表明，研制的包膜尿素具有较好的缓释性能，并可以实现控制释放。
A comparison study of some physiologic indicators of rice received common urea or polymer coated urea was conducted by using pot and field microplot experiments.
采用盆栽试验和田间微区试验，对施用覆膜尿素和普通尿素的水稻生理指标进行测定。
Under base employ of the coated urea, the total N concentration of farm surface water was near the contract level, and the possibility via runoff was very little.
结果表明，包膜尿素在基施情况下，田面水总氮浓度始终接近对照水平，通过径流损失的可能性很小。
The coated urea MEISTER combined with dicyandiamide (DCD) didn't further increase maize and rice yields. Moreover, the nitrification inhibition effect of DCD was not steadily.
MEISTER包膜尿素配施DCD没有进一步增加玉米和水稻的产量，DCD抑制土壤硝化作用的效果不稳定。
The field experiments were carried out to investigate the effects of urea and resin coated urea on yield and economic benefit of corn planted in aeolian sandy soil and irrigated desert soil.
田间试验对比研究了树脂包衣尿素和普通尿素在灌漠土和风沙土两种土壤上种植玉米的肥料投入产出效益和产量差异。
The results showed that, there are differences between the(hydrophilic) coated urea release and the hydrophobic coated urea release, the lag stage did not occur in the processes of CCU release;
结果表明：亲水性包膜尿素与非亲水性包膜尿素的释放情况有很大不同，不存在明显的滞后阶段；
And the surface of urea granular successfully coated by a potassium-type hydrogels using this coating technique, and newly type of WSCU had been made out.
并用这一工艺技术将一种钾型保水剂成功地聚合成膜在尿素颗粒表面，制成了钾型超强保水剂包膜尿素。
Results showed that the rate of ammonia volatilization of coated-urea was lower than common urea under different water content conditions (10%. 15%. and 20%).
试验结果表明，在三种不同水分含量条件下（10％、15％、20％），涂层尿素施入土壤后氨挥发速率均比普遍尿素低；
Polymer-coated fertilizer applied in fall showed somewhat lower trufgrass quality than the ones with urea applied.
但秋季施用缓效肥未表现出明显的优势，包膜缓效肥的效果甚至还低于施用尿素的效果。
The direct blending of urea and coated PK granules prohibits the problems in the production of compound fertilizer based on urea-SSP, with lower N loss, easier sale and more economy.
采用尿素与包裹后的磷钾粒肥直接掺混，避免和解决了尿素-过磷酸钙系复混肥生产中存在的一系列问题，减少了氮素的损失，提高了产品的市场销售属性，增大了企业经济效益。
The direct blending of urea and coated PK granules prohibits the problems in the production of compound fertilizer based on urea-SSP, with lower N loss, easier sale and more economy.
采用尿素与包裹后的磷钾粒肥直接掺混，避免和解决了尿素-过磷酸钙系复混肥生产中存在的一系列问题，减少了氮素的损失，提高了产品的市场销售属性，增大了企业经济效益。
应用推荐