Plant growth and nutrient release are directly related . 植物生長量與養(yǎng)分釋放量是正相關(guān)的關(guān)系。
Study of utilization rate of coated urea nutrient release based on non soil culture 桐油包膜尿素在無土基質(zhì)中的利用性研究
Nutrient release and energy return of fine roots in casuarina equisetifolia plantation 木麻黃人工林細(xì)根分解過程中的養(yǎng)分釋放及能量歸還
Effects of different temperatures on the nutrient releasing characters of apex horticultural release - controlled fertilizers 園藝專用控釋肥料養(yǎng)分釋放特性的影響研究
Integrating with dynamic function , the hydrodynamic inducement of sediment suspension and a conceptual model for nutrient release from sediment in large shallow lake were suggested 結(jié)合水動力作用,提出了大型淺水湖泊水動力作用導(dǎo)致底泥懸浮,從而使得底泥中的可溶性營養(yǎng)物質(zhì)釋放這一內(nèi)源釋放的概念性模式。
So considerable errors might occur if water dissolution rate method was used to estimate the fertilizer efficiency although the method can make quick comparisons of nutrient release rates among different crfs / srfs 水中溶出率雖可以快速比較不同控/緩釋肥的溶出速率,但用以估測肥料在田間的實際肥效,則產(chǎn)生較大的誤差。
Termed a reactive layer coating membrane ( rlc ) , laboratory evidence suggests a predictable nutrient release since a concurrent absorption of water into , and diffusion of , solubilized fertilizer material out through the highly crosslinked membrane continues until nutrient release is complete ( table 1 ) 對于一種反應(yīng)層包膜( rlc ) ,實驗室研究表明,因為在養(yǎng)分完全釋放之前,隨著水分吸收,被溶解的肥料通過高度交織的膜不斷向外擴(kuò)散,故養(yǎng)分的釋放是可以預(yù)測的(表1 ) 。
This paper aimed at present status that most researches assembled in chemical products , adopted different determine methods , represented the transformation characteristic of nitrogen among water and soil of the sulphureous urea , confirmed the nutrient release speed , found out the optimum determine method in agricultural production application 針對目前對緩釋肥料釋放特性的研究集中在化工制作領(lǐng)域這一現(xiàn)狀,采用不同的測定方法,闡明含硫尿素中的養(yǎng)分氮在水及土壤中的轉(zhuǎn)化特點,確定養(yǎng)分的釋放速率,以求找出適合農(nóng)業(yè)生產(chǎn)應(yīng)用的方法。
The structure of fertilizers was studied by scaning electronic microscopy ( sem ) , and the nutrient release characteristics were studied using water dissolution rate method and soil column leaching method . [ result ] the 24 hours n water dissolution rates of sapcus were 18 . 22 % - 83 . 87 % , and n accumulated leaching rates in four weeks were 40 . 91 % - 65 . 38 % , which decreased by 5 . 21 % - 40 . 68 % compared with that of urea under the same experiment conditions 方法以不同類型和吸水倍率的高吸水性樹脂為包膜材料,以大顆粒尿素和改性礦物包膜尿素為原料肥料,研制出高吸水性樹脂單層包膜尿素、高吸水性樹脂復(fù)式包膜尿素系列產(chǎn)品,利用電子掃描電鏡研究了其結(jié)構(gòu)特征,并以水中溶出率法和模擬土柱淋溶法研究其養(yǎng)分釋放特性。