per unit area yield 中文意思是什麼

per unit area yield 解釋
單位面積產量
  • per :
  • unit : n 1 個體，一個，一人。2 （計值、組織、機構）單位；單元；小組，分部；【軍事】部隊；分隊。3 【機械...
  • area : n. 1. 面積；平地；地面。2. 空地；〈英國〉地下室前的空地。3. 地區，地方；〈比喻〉區域；范圍。
  • yield : vt 1 生出，產生（作物、報酬、利益等）。2 給與，讓與；讓渡；放棄（權利、地位等）；交出。3 承認。4 ...
  1. The results show that : the main driving forces of arable land change of shouguang county are the per capita income, the ratio of the pasture output value, the ratio of the cropping output values and the ratio of agricultural labor force proportion ; the main driving forces of arable land change of quzhou county are the variation of grain yield per unit area, the ratio of the pasture output value, the ratio of the cropping output values, the ratio of grain field areas and the population density

    結果表明：壽光市耕地變化的主導驅動力包括人均收入、牧業總產值比例、種植業總產值比例和農林牧漁業勞動力；曲周縣耕地變化的主導驅動力包括糧食單產、牧業總產值比例、種植業總產值比例、糧田面積佔耕地面積比例和人口密度。在此基礎上，揭示縣域尺度上耕地變化的驅動機制，並為進一步進行土地利用覆蓋變化研究積累方法和經驗。
  2. The number of panicles per unit area was the most important yield components in determining final yield

    單位面積小穗數是決定最終產量最重要的產量構成因素。
  3. Four components contribute to rice grain yield including the panicles per unit area, the number of spikelets, the percentage of, and the weight of ripe grains

    四個水稻籽粒產量構成因素為單位面積穗數、小穗數、成熟籽粒百分數和成熟籽粒重量。
  4. Tea crop area, harvesting area, per unit area yield, gross output, and the total agricultural output value of the tea industry are analyzed and assessed by using regression model analysis

    運用回歸模型對茶葉種植面積、採收面積、單位面積產量、總產量、茶葉農業總產值進行分析和預測。
  5. We must protect primary farmland, keep the area sown to grain stable, improve the structure of grain varieties grown and increase the per unit area yield of grain

    要保護好基本農田，穩定糧食播種面積，優化糧食品種結構，著力提高糧食單產。
  6. Under present condition, henan cotton has no price advantage. therefore, the countermeasures of henan cotton under the frame of wto are following : first, improve the per unit area yield, especially paying much attention to the application of science and technology

    目前，尤其是2001年，國內棉花價格已經很低，生產成本的提高和棉價的降低必將損害棉農的利益，從而不利於棉花生產的發展。
  7. The results of the 2 - year field experiments of reducing chemical n fertilizer application in rice growth and the 1 - year demonstration and extension on a rather of large - area showed that appropriately selecting various ways of reducing chemical n fertilizer application according to different contents of alkali - hydrolysable n in soil could decrease the application amount by 15 % ~ 20 % and maintain the current rice yield per unit area

    摘要通過2年水稻化學氮肥減量施用田間試驗及1年較大面積的推廣示範研究，結果表明：崇明常年高氮水平下的水稻栽培區，降低氮肥用量可以通過土壤高、中、低堿解n含量水平，以維持現有水稻單產為原則，針對性地選取減氮途徑進行減量， 2年結果可比習慣施肥減氮15 % ~ 20 % 。
  8. Measures to improve per unit area yield of xin hongbao production

    提高新紅寶制種單產的技術措施
  9. The results show that the per unit area yield of tomato has incrased by 53. 7 % in greenhouse of the photo - ecology agricultural film

    用這種光生態膜苫蓋日光溫室進行番茄生產，產量提高了53 . 7 % 。
  10. This thesis study one of important factor in per unit area yield travel speed measure device and his sensor choice and relevant error analysis of form especially

    本論文重點是對單產的重要因素之一的行駛速度測量裝置及其傳感器形式的選擇和相關誤差分析進行了研究。
  11. Given a relatively stable sown area, china can achieve its desired total grain output target if the annual average increase rate of per unit area yield is one percent from 1996 to 2010 and 0. 7 percent from 2011 to 2030

    在播種面積相對穩定的前提下，只要1996 ? 2010年糧食單產年均遞增1 ， 2011 ? 2030年年均遞增0 . 7 ，就可以達到預期的糧食總產量目標。
  12. Our country has already fully realized the importance of properly dealing with the relationship among the population, the resource and the environment. in order to solve the contradiction on the utilization of land resource between food supply and economy development, it ’ s unrealistic only by the means of increasing the yield of per unit area. however, land exploitation, reclaimation and arrangement is undoubtly one of the important way to solve this problem

    我國已充分認識到妥善處理人口、資源、環境三者關系的重要性，確定了「十分珍惜、合理利用土地和切實保護耕地」的基本國策。當前，要解決吃飯和經濟發展與土地資源的矛盾，單靠提高單位面積的產量是不現實的，而土地開發復墾與整理正是解決這一矛盾的重要途徑之一。
  13. Because of the diminishing opportunity to expand cultivated land, researches have been mostly focused on the rise of yield per unit area

    由於擴大耕地面積的可能性越來越小，研究已主要集中於提高單位面積產量。
  14. ( 4 ) the yield per unit area of main agricultural products and the net income per capita annual of rural households increased very slowly. ( 5 ) the advance of adjusting structure of agricultural industry was very slow. ( 5 ) the suggestion on solving those problems are as follows : ( 1 ) seizing the opportunity that the central government carries out the policy developing the western china and fasten the development of the western china to strengthen the basis of tax income

    4 、西部地區財政支農投入中存在的問題導致了「三憂」 、 「三慢」等嚴重後果，即：西部地區農業水利基礎設施狀況堪憂，農業科技水平堪憂，生態環境狀況堪憂；西部地區農業結構調整步伐緩慢，農業產出水平提高緩慢，農民收入增長緩慢。
  15. But the per unit area yield has not been improved in the last ten years

    種質資源狹窄是造成這種現象的一個重要原因。
  16. But, the per unit area yield lies in middle and inferior class in our country

    但是，在國內看來，棉花單產處于中等偏下水平。
  17. Research indicates : the per unit area yield and quality of henan province lies in middle and superior class

    研究表明：河南棉花在單產水平和質量上均處于國際中上等水平。
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