leaching conditions 中文意思是什麼
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In recent years, the water - saving and control irrigation technique of rice has diverted from plot experimental and demonstration to lare scale. and has got remarkable economic and social benefits. amed at the characteristics of this irrigation area, optimal selection for water - saving techniques of rice, deciding the amout of leaching water and irrigation modles, investigating the adaptability of the water - saving and control irrigation technique in saline land. studying the increase in production mechanism of the technique are important to extend the technique, to better and develop saline land as well as slick spots. according to the results of field experiments, optimization study was conducted on the water - saving irrigation technique of rice in saline land, the effects of different water - saving irrigation techniques on the physiological indexes and yield of rice were systematically analyzed. by using mutiplepurpose fuzzy optimization method, better. water - saving irrigation technique was selector out, that is. the control irrigation technique in rice. the mechanism of it was analyzed from the aspect of the physiological and ecological saving water of rice to provide the implemental process and technical point ; throgh the quantitive analysis and comparision on control irrigation and control class ( flood irrigation ), high production and quality mechanism of the technique was analyzed in terms of physiology indexes of rice, the variation of soil moisture, the pest resistance and the lodge resistance, the change of soil temperature in paddy fields. the yield constitutive factors, the quality of rice and so on. in saline land. control irrigation and intermittent leaching modles were adopted to validate the adaptability of the technique in irrigation of rice in saline land, to analyze rice ' s physiological - ecological indexes and the change of soil salt content under the conditions of control irrigation leaching of rice and and to provide control irrigation and combined modle of intermittent leaching to adapt to different conditions
本文從試驗及試驗資料入手，取得以下主要成果和結論：對鹽堿地水稻節水灌溉技術進行優化研究，系統地分析了不同節水灌溉技術對水稻生理指標及產量的影響，採用了多目標模糊優化的方法，對灌水技術進行綜合評判，優選了節水灌溉技術，論證該地區宜採用水稻控制灌溉技術；闡述控灌技術通過調節和控制水稻的需水規律，降低水稻高產情況下的無效水量消耗，從水稻生理、生態節水兩方面分析了控灌技術節水機理，針對性地總結出水稻各生育期實施節水控灌技術的步驟及技術要點；通過控灌與淹灌的定量對照比較，從根系、莖蘗、冠層葉片及綠葉動態到株高，土壤水分變化，抗病蟲害、抗倒伏能力，稻田土溫變化，產量構成因素及稻米品質等諸多方面進行動態比較，分析控灌技術高產優質機理；在鹽堿稻地採用控制灌溉+間歇淋洗模式，跟蹤測試田間水鹽變化狀況，驗證控制灌溉技術在鹽堿地區水稻灌溉中應用的適應性，通過分析水稻控制灌溉淋洗條件下水稻生理生態指標，提出優化控制灌溉+間歇淋洗組合模式，為進一步在高礦化度地區試驗水稻控灌技術奠定基礎。 -
Some main results of testing research were as fellows : i. in the course of testing of leaching zinc dross, leaching zinc dross by sulfuric acid was researched and the effects on the leaching rate of the zinc dross were analyzed by author, the optimum conditions of leaching testing of zinc dross were determined as fellows : liquid - solid ratio 6 : 1, stirring ratio 250r / min, granularity 120 mesh, the soaking time 5h, the concentration of sulfuric acid of 30 %, and under these conditions, the rate of leaching zinc is above 92. 0 %. ii. in the course of testing of purification, on the basis of comprehending and comparing all present methods of the manganese - removal and iron - removal, the oxidizing method of manganese - removal in zinc sulfate solution using ammonium persulfate was put forward and the oxidizing method of iron - removal in zinc sulfate solution using the goethite process and oxidation - hydrolysis process was adopted
研究的主要結果具體如下： 1 、研究了硫酸浸出鋅浮渣並分析了影響浸出率的各種因素，確定了浸出鋅浮渣的最佳條件為：液固比為6 ： 1 ，攪拌速度為250r min ，粒度為- 120目，酸浸時間為5 . 0h ，硫酸濃度30 ，鋅浮渣的浸出率大於92 . 0 ； 2 、在綜合和比較了目前除錳和除鐵的各種方法基礎上，提出了過硫酸銨氧化除錳方法和選擇了針鐵礦-氧化水解聯合法除鐵方法，並分析和討論了影響除錳率和除鐵率等各種因素，確定了除錳的條件為：溫度90 ， ph值5 . 4 ，反應時間3h ，過硫酸銨達到理論值的1 . 2倍，除錳率超過99 . 86 ；聯合法除鐵的條件為：氧化反應時間1 . 5小時、溫度控制在90 92 、 ph值5 . 2 5 -
Characterization of waste. methodology for the determination of the leaching behaviour of waste under specified conditions
廢棄物特性.特殊條件下廢棄物瀝濾測定方法 -
Characterization of waste - methodology for the determination of the leaching behaviour of waste under specified conditions ; german version en 12920 : 2006
廢棄物特性.特殊條件下廢棄物瀝濾測定方法 -
The fate of nitrogen forms of nitrogen fertilizers under alternate leaching and drying conditions
間歇淋洗干濕交替條件下氮肥的氮行為研究 -
It is apparent that a high degree of ammonia volatilization and / or nitrate leaching can occur in cropping systems susceptible to previously described conditions
很明顯，高的氨揮發和（或）硝態氮的淋失會發生在符合上述條件的任何種植制度中。 -
Characterization of waste - leaching behaviour tests - up - flow percolation test under specified conditions
廢棄物的表徵.浸出特性試驗.上流滲透試驗 -
Characterization of waste - methodology for the determination of the leaching behaviour of waste under specified conditions
廢物的特性說明.在特定條件下廢物浸出特性測定的方法研究 -
Abstract : in this paper, geology of ore deposits, techni c al conditions, mining methods and blasting parameters of in - situ leaching uraniu m after blasting for an outcrop ore body are introduced
文摘:介紹了某鈾礦體原地爆破浸出的礦床地質，技術條件，采礦方法選擇及爆破參數。 -
Characterization of waste - leaching behaviour tests - up - flow percolation test under specified conditions ; german version cen ts 14405 : 2004
廢棄物表徵.浸出性能試驗.上流滲透試驗 -
Characterization of waste - leaching behaviour test - up - flow percolation test under specified conditions
廢棄物的表徵.滲出性能試驗.上流滲透試驗 -
A new electrochemical method was established to analyze lead in samples by voltammetry of square wave leaching after pre - treatment of microwave irradiating digestions and the optimum determination conditions were explored
摘要利用微波消解樣品，再以電化學方波溶出伏安法檢測樣品中鉛的含量並確定了最佳測定條件。 -
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，研製出高吸水性樹脂單層包膜尿素、高吸水性樹脂復式包膜尿素系列產品，利用電子掃描電鏡研究了其結構特徵，並以水中溶出率法和模擬土柱淋溶法研究其養分釋放特性。 -
A preliminary study was carried out on the method of acquiring parameters for soil dual - porosity model and the analysis for the simulation of soil nitrate leaching by dual - porosity model. the feasibility and experimental conditions of soil particle size analyzing by the laser particle - size analysis was discussed, based on the comparison results of nine soil samples by the laser particle - size analysis and traditional pipette and sieve analysis
本文初步探討了土壤兩域模型的參數獲取方法及兩域模型應用於土壤硝酸鹽淋洗的模擬分析，為進一步研究優先流以及分形理論在土壤溶質（包括養分）運移研究中的應用打下基礎，以更準確地模擬和預測農田土壤硝酸鹽的淋洗，為農田水肥優化措施提供依據。
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