yield of water 中文意思是什麼
yield of water
解釋
給水度-
The maximum influence of drought stage upon rice yield is the jointing - booting stage ; the second influence stage is earing stage and the suitable water deficiency in tillering and filling stage can ' t bring tremendous effects on yield of rice
不同階段的不同程度受旱對水稻生長發育的影響不盡相同，相同程度受旱對產量影響最大的階段為拔節孕穗期；抽穗開花期次之，在分蘗期和灌漿期實施一定程度的水分虧缺不會對產量構成較大影響。 -
Based on the situation of demand exceeds supply in the market, the author would like to find out the constraints of the water chestnut development by use of pra ( participatory rural appraisal ) in a survey to carry out stakeholder analysis including the water chestnut farmers, government and processing companies. also, the author applied a tool of system theory to analyze the constraints of water chestnut plant production development. the results are as following : the study shows that a main factor that restricts the plant yield ( per unit yield ) and quality ( product quality ) of water chestnut is the low level of prevention and control of water chestnut culms damping - off ; a disease of the water chestnut
針對賀州市荸薺產業發展中的「銷大於產」的突出矛盾，筆者通過運用pra （參與式農村評估）方法，對荸薺種植區的農戶、政府機構、加工流通企業等進行了調查研究，並運用系統科學的方法對荸薺種植系統的不同組成因子的制約因素進行分析，得出研究結論如下：農戶對荸薺稈枯病害的綜合防治水平偏低，制約其荸薺種植的產量（單產）和質量（商品質量） 。 -
Soil is the base of agriculture production, the key measure to prevent water and soil loss is to conserve soil, but most soil nutrient is lost with the sediment loss, and serious water and soil loss make the soil thickness degrease, the soil nutrient be deficient and lean, the land quality degrade and the yield of plant decrease, all this results is going to threaten the people ' s transplanting and the agriculture sustainable development, and restrict the economy development of three gorges regions
同時，土壤是農業生產的根本，治理水土流失的關鍵是要保住土壤，而土壤養分絕大部分是隨著泥沙流失的，嚴重的水土流失造成土層淺簿、養分貧瘠，土地質量退化，產量下降，對三峽庫區移民工作和農業可持續發展造成嚴重威脅，制約三峽庫區經濟發展。因此進行三峽庫區坡耕地土壤侵蝕機理研究，探索減輕坡耕地土壤流失的方法措施，具有全局性的重大意義。 -
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。 -
As the old specific water yield apparatus can not put up visually the influence of water level and its decrease depth on the specific water yield of incompact soil sample, a new apparatus is designed
摘要針對原有給水度實驗儀不能直觀反映地下水水位埋深及其降深對給水度影響的缺點，設計了能採用柱體法測定鬆散土體試樣的給水度的實驗儀。 -
Abstract : the biological control effect on fruit tree insects and eco - economic benefit of interplanting mentha spicata with orchard was studied and analysed based on field polt experiment. the result shows : interplanting mentha spicata with orchard have obviously biological control effect on fruit tree insects like phyuoenistis eitrella stainton, papilio xuthus l, phyllocoptruta oleivora ashmead and myzus perieas sulzer ect, interphanting mentha spicata with slope orchard could reduce soil and water losses, and improve soil physical - chemistry property effectively, its also accelerate fruit tree growth and increase the yield of fruit tree, and has good economic benefit
文摘:在野外小區試驗的基礎上，對果園套種留蘭香生物防治果樹蟲害的作用及其生態經濟效益進行了研究和分析，結果表明：果園套種留蘭香對潛葉蛾、柑橘鳳蝶和桃蚜等果樹害蟲有明顯的生物防治效果；在坡地果園套種留蘭香能有效減輕水土流失、改善土壤的理化性狀，促使果樹的生長和提高果樹的產量，並具有良好的經濟效益 -
Studies of different water managements on tillers, panicles, and mechanism of high - yield of rice
不同灌溉方式對水稻分蘗成穗規律及產量影響研究 -
The pot experiment was conducted to study the effect of water and nitrogen cooperation on winter wheat yield and quality
摘要在盆栽條件下，研究了水氮配合對冬小麥產量和品質的影響。 -
Components and correlation on seed yield of water spinach
蕹菜種子產量的構成及相關 -
Development of water - saving agriculture, dry fanning and ecological agriculture, construction of fine quality product centers of gain, cotton, oil and tobacco, well - bred breeding, reform of middle and low yield fields, small watershed control, processing and storage of agricultural and sideline products, production of high - efficiency low toxicity and safe biological pesticide, construction of livestock breeding centers
節水農業、旱作農業、生態農業開發，糧、棉、油、煙優質產品基地建設，良種繁育，中低產田改造，小流域治理，農副產品加工貯藏，高效、低毒、安全生物農藥及高效有機肥生產、養殖業基地建設等。 -
To this area precipitation materials for many years, evaporate materials, surface flow materials, hydrometeorological materials, hydrogeological materials carry on exhaustive analysis, have analysed the state of water resource of the sand district, proceed from the heat of the earth ' s surface is balanced, water yield balanced basic theories, combine the amount of regional water resource set up of the materials, such as scene, hydrology, soil of the sand district, etc. and estimate models, have calculated the surface water, groundwater of this area, has carried on models to examine according to the real data, and has predicted to the state of water resource under different climate change scenes of future that analyse. have put forward the scheme that the water resource in this area utilized rationally, use the non - linear motive force model to predict the precipitation, utilize the materials of actual observation, the natural supply amount of calculating out groundwater of sand ground of balanced principle of the amount of water used at the same time, and can exploiting amount predict to groundwater, district of sand,
本文以寧夏半乾旱地區鹽池縣沙地水資源為研究對象，對該地區多年降水資料、蒸發資料、徑流資料、水文氣象資料、水文地質資料進行了詳盡的分析，分析了沙區的水資源狀況，從地表熱量平衡、水量平衡的基本理論出發，結合沙區的氣象、水文、土壤等資料建立了區域水資源量估算模型，計算了該地區的地表水、地下水，根據實際資料進行了模型檢驗，並對未來不同氣候變化情景下的水資源狀況進行了預測分析，提出了該地區水資源合理利用的方案，運用非線性動力模型對降水量進行預測，同時利用實際觀測資料，運用水量平衡原理計算出沙地地下水的天然補給量，並對沙區地下水可開采量進行預測。 -
Results showed that by using straw and plastic film dual mulch in dry - cultivation of rice planting, both of the range of temperature difference and the loss of water in dry - cultivated field of rice were decreased, the soil structure was improved, the soil nutrient contents were increased, the ineffective tillers of rice plant were decreased, the growth and development stage were advanced, the filling stage was extended, the grain per ear and 1 000 grain weight were raised, the grain yield of rice increased obviously
水稻秸稈+地膜二元覆蓋旱作栽培效應的研究結果表明，秸稈+地膜二元覆蓋旱作稻田土壤變溫幅度降低，水分散失減少，結構改善，養分積累增加；水稻無效分蘗減少，生育轉變提前，灌漿結實期延長，穗大粒多，千粒重高，增產效果顯著。 -
( 3 ) three methods of water yield - use balance, reversed operation and dispatch chart operation have been introduced for the operation of heiquan reservoir individually. the dynamic inquiry of dispatch of reservoir, and orperation information in figures and data revising in table or figures has been realized
（ 3 ）為該水庫設計了水量平衡調度、反運用調度、調度圖調度三種興利常規調度模式，並且實現了水庫調度圖和調度資料的動態查詢以及通過圖表聯動修改數據。 -
The ultimate purpose of establishing the irrigation information management system is to accomplish the automation and information of the irrigation process, to promote the efficiency of water use, to increase the yield and improve the quality of crop, which is the inexorable trend of the future development of the irrigation agriculture
建立灌溉信息管理系統的最終目的是實現灌溉過程的自動化和信息化，提高水資源利用效率，增加作物產量，提升作物品質，這也是未來灌溉農業發展的必然趨勢。 -
The result of experimentation on coupling effect of water and fertilizers on spring corn in the three gorges reservoir area indicate that water stresslead the effect low of highness and lai, and the most effect is made in shooting stage ; it has a significant positive correlation between the yield of corn and biomass, and hasn ' t none significant positive correlation between the yield of corn and the weight of roots ; the coupling effect of water and n is significant, but the coupling effect of water and k is not significant, the maximum yield of corn condition fitting - water and medium n, corn absorbs n has a threshold value during the growth, and using superfluous n is able to prick up soil drought and crop drought ; water is the leading factor which effects the yield of corn, next is n and k
摘要三峽庫區春玉米盆栽水肥耦合試驗研究結果表明，水分脅迫導致玉米株高和葉面積指數降低，以拔節期受到影響最大；玉米產量與生物量呈顯著正相關關系，產量與根重無顯著正相關關系；水氮耦合效應顯著，適宜水分和中氮處理下玉米的產量最高，玉米生長發育對氮肥的吸收存在一定的閾值，過多施用氮肥會加劇土壤乾旱和作物乾旱，水和鉀耦合效應對玉米產量影響不顯著；水分是影響玉米產量的主導因素，其次是氮效應和鉀效應。 -
The authors probed into the reason of ambivalence, pointed out the development relationships among them, and mainly brought forward seven measures : ensuring necessary plantations and studiously increasing yields of grains ; setting up reasonable grains reserves ; increasing the yield of unit area and overall productivity of land, and ensuring gross yields of grains to be increased steadily ; adjusting measures to local conditions, differentiating land varieties among the total land of gansu province to produce grains ; continuously adjusting structure of production, improving agricultural economy benefits, and increasing farmer incomes ; realizing essential self - support of gross grains, meanwhile dealing with well regional and structural scarcity gradually ; strengthening outcomes of ecological construction, increasing the intensity of ecological compensation, utilizing strategy of virtual water to solve grain safety to be fragile and sensitive regions of ecology, and realizing agricultural sustainable development
文章分析問題的矛盾所在，指出三者的辨證發展關系，並主要提出七點措施：保證一定的播種面積，努力增加糧食產出；建立合理的糧食儲備規模；依靠科技，主攻單產，提高土地的綜合生產能力，保證糧食總量穩定增長；因地制宜、分類指導省內不同地區的糧食生產；繼續調整農業生產結構，提高農業的經濟效益，增加農民收入；實現省內糧食總量基本自給的同時，逐步解決好區域性、結構性短缺問題；鞏固生態建設成果，加大生態補償力度，利用虛擬水戰略解決生態脆弱區、生態敏感區等局部地區的糧食生產安全，實現農業可持續發展。 -
In this paper, river water quality prediction is integrated with water pollution control measures. two parameters, water environmental capacity and pollution index are selected for pollution control measures. the objective is achieved after the development of simulation model using one - dimensional advection dispersion equation. the model algorithm and computer program is an improvement over the existing water quality models, since the model solution involves four point implicit upwind schemes for water quality prediction and pollution control measures at each grid point. model simulation results the assessment of water environmental capacity that yield the acceptable and realistic pollutants concentration in order to maintain water quality objectives. the pollution and overall pollution index of the river is suggested for integrating number of contaminants variables into one index. study provides the mathematical and scientific procedure for water quality management. the new approach is helpful for the water pollution control and to study the impacts of waste effluents on the river system for strategic planning purposes
本文將水質預測及水污染控制措施有機地結合，選取水環境容量和污染指數作為水污染控制的參數.這樣，一維對流-擴散水質方程的求解除就是實現本研究目的的關鍵.本研究採用的模型在現有的水質模型基礎上有所改進，因為其採用四點隱格式對水質進行預測，推求可接納污染物的環境容量值及為保證水質而限定的污染物濃度值，從而制定相應的水污染控制措施.為整體考慮各種污染物的情況，建議採用河流的污染指數進而推求綜合污染指數.總之，本研究為水質保護提供了科學的計算方法，該法對水污染控制及污水對河道水質的影響是實用有效的 -
Abstract : in this paper, river water quality prediction is integrated with water pollution control measures. two parameters, water environmental capacity and pollution index are selected for pollution control measures. the objective is achieved after the development of simulation model using one - dimensional advection dispersion equation. the model algorithm and computer program is an improvement over the existing water quality models, since the model solution involves four point implicit upwind schemes for water quality prediction and pollution control measures at each grid point. model simulation results the assessment of water environmental capacity that yield the acceptable and realistic pollutants concentration in order to maintain water quality objectives. the pollution and overall pollution index of the river is suggested for integrating number of contaminants variables into one index. study provides the mathematical and scientific procedure for water quality management. the new approach is helpful for the water pollution control and to study the impacts of waste effluents on the river system for strategic planning purposes
文摘:本文將水質預測及水污染控制措施有機地結合，選取水環境容量和污染指數作為水污染控制的參數.這樣，一維對流-擴散水質方程的求解除就是實現本研究目的的關鍵.本研究採用的模型在現有的水質模型基礎上有所改進，因為其採用四點隱格式對水質進行預測，推求可接納污染物的環境容量值及為保證水質而限定的污染物濃度值，從而制定相應的水污染控制措施.為整體考慮各種污染物的情況，建議採用河流的污染指數進而推求綜合污染指數.總之，本研究為水質保護提供了科學的計算方法，該法對水污染控制及污水對河道水質的影響是實用有效的 -
The quantity of water that can be drained out is called the specific yield.
能夠抽出的水量稱之為單位給水量。 -
The effects of direct water extraction, enzymatic hydrolysis and biological fermentation on the yield of water - soluble dietary fiber from rice bran were studied
摘要研究了直接水浸提法、酶解法、生物發酵法對米糠水溶性膳食纖維得率的影響。
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