agricultural soils 中文意思是什麼

agricultural soils 解釋
農田土壤
  • agricultural : adj 農業的，耕種的，農學（上）的。 an agricultural experimental station 農業試驗場。 agricultural...
  • soils : 土壤
  1. Organic acids are normal constituents of most agricultural soils.

    有機酸是大多數農業土壤中通常的組分。
  2. Agricultural soils are the ultimate recipient and depository of most applied foliar and soil pesticides.

    噴撒于葉面和用於土壤的農藥大多以農業土壤為其最終受體和貯存場所。
  3. Effect of plant species on degradation of butachlor in rhizosphere soils collected from agricultural field

    作物種類對根際土壤中丁草胺降解的影響
  4. The leaching and transferring of 95zr in different soils and its actions in several aquatic and terraneous ecosystems were studied by using the isotope tracer techniques. this would provide some basic data for illustrating the behavior of 95zr in different agricultural ecosystems and serve as science according for establishing some safety standard and managing pollution. at one time, environmental pollution arising by poisonous pollutes has been global hotspot problem

    本文採用同位素示蹤技術研究了~ （ 95 ） zr在不同土壤中的淋溶、遷移和在幾種水生及陸生生態系統中的行為，為探明~ （ 95 ） zr在不同農業生態環境中的行為規律提供基礎資料，對制定有關安全標準和污染治理提供了科學依據。
  5. The empirical equation w = asb was used to fit water holding capacity of four kinds of agricultural soils in loess plateau. soil water holding capacity and unavailable water content increased as soil texture became clayed. available water content in loam was higher than those in sandy soil and clayed soil

    黃土高原四種主要農業土壤的水分特徵曲線並無明顯的平臺或拐點產生，其關系能夠很好地用garden經驗方程（ w = as ~ （ - b ） ）進行擬合。
  6. With the purpose of better understanding some weak links in this subject, we comprehensively and systematically compared the effects of some typical inhibitors and their different combined ways in inhibiting cd bioavailability in purple soil, further studied the laws and affecting factors of cd ' s transfer and transformation in soil - plant system, revealed the mechanisms inhibitors function, and explored the practicable inhibitor prescriptions and their usage. the results are expected to provide reliable techniques for controlling cd pollution of agricultural soils in chongqing and it is also significant to ameliorate soils polluted by other kinds of heavy metals. comprehensive methods including pot experiment, laboratory culture experiment, kinetic and thermodynamic adsorption - desorption experiment were adopted in this study, and the acidified purple soil was chosen to test, considering that cd is highly active in this soil

    本研究針對重慶市農業土壤的污染狀況，選取鎘活性較高的酸化紫色土為供試土壤，採用盆栽試驗、培養試驗、化學熱力學與動力學吸附試驗相結合的方法，系統研究和比較多種調控劑及其不同組合方式對鎘生物活性的效應，並揭示鎘在土壤?植物系統中的遷移轉化規律及影響因素，進一步分析調控劑的作用機理，探尋具有實際應用價值的調控劑配方及合理使用的方法，這不僅可以為重慶市農業土壤鎘污染的防治提供可靠的技術保障，而且對于其它重金屬污染的治理也有一定的理論意義。
  7. The purpose of this web site is to share my experiences with workers in any country on water logging in agricultural lands, irrigation induced soil salinity, subsurface drainage for agriculture ( horizontal and vertical ), reuse of groundwater, ground - water hydraulics, ( geo ) hydrology, rainfall and surface runoff relations, reclamation and improvement of water logged saline, salty, sodic alkaline, and acid sulphate soils, plant growth, crop production and responses as well as statistical analysis consisting of segmented linear regression and cumulative frequency distributions

    描述:探討農業耕地的水澇問題；灌溉導致的土壤鹽堿化；地表灌溉；地下水的再利用；地下水水力學；雨水與水流失的關系；淺地表排水；土壤開墾及水澇，酸性，堿性土壤的改良；片段線形回歸和累積頻數分佈的統計分析等。
  8. The area of mn - deficiency soil is large in china. mn - deficiency in agricultural crops, especially in wheat plants, is secondly to fe - deficiency in calcareous soils of the world

    中國缺錳土壤面積很大，作物缺錳特別是麥類作物缺錳在全球石灰性土壤上僅次於缺鐵。
  9. Contents and its characters of heavy metals with tobacco - growing soils in zhengan county of remote karst agricultural area

    寧夏六盤山地區不同森林類型土壤的蓄水和滲透能力比較
  10. The addition of lime to saturated clay soils ( liming ) is a common agricultural practice, improving soil structure by encouraging crumb formation and making heavy soils more workable

    加入石灰使其飽和是農業上常用的一種方法，通過促進小塊形成改變土壤結構，使粘重土壤變得可以使用。
  11. Soil amelioration and ample supply of nutrients in the form of fertilizers is needed to convert poor soils into productive agricultural land

    土壤改良和增施肥料可使這些土壤逐步轉變成具有農業生產力的土壤。
  12. Angola has particularly good conditions for agricultural production as it has rich soils and the average temperature is warm, at between 19 and 26 degrees celsius

    安哥拉土壤肥沃，氣候適宜（平均溫度為19到26攝氏度） ，非常有利於農作物的生產。
  13. Methods of soil investigations for agricultural water engineering - physical laboratory tests - part 13 : determination of soil density, total pore volume and porenumber of mineral soils

    農業水利工程土壤調查方法.實驗室物理試驗.第13部分
  14. Methods of soil investigations for agricultural water engineering - physical laboratory tests - part 14 : determination of volume of solids of bog soils

    農業水利工程土壤調查方法.實驗室物理試驗.第14部分
  15. Water engineering of agricultural lands - part 4 : terms, peat and peat soils

    農業水利工程.第4部分:術語.泥炭和泥炭土壤
  16. Salinization of soils is an increasingly threat to agriculture, forest and environment. there are 0. 96 billion hectares of salted soil worldwide amounting to one third of the total terrestrial area on earth. there are about 100 million hectares of salted soil in our country that severely limits agricultural production

    土壤鹽漬化是影響農林業生產和生態環境的嚴重問題，目前全世界約有9 . 6億公頃鹽漬土，占陸地面積的三分之一，我國的鹽漬化土地近1億公頃，給農林業生產造成了重大損失。
  17. In view of improving the efficiency of fertilizer, we paid more attention to the effect of water dynamic process and strength on nutrient availability. in this research, by model test, four kinds of agricultural soils were studied, concerning about the effect of drying - wetting alternation and temperature on potassium availability, ions " diffusion in soils under different levels of water content, and the distribution coefficient of potassium between solution and soil phases

    因此，本研究通過室內模擬土壤水分的動態變化，對水分變化的過程（干濕交替不斷進行）和變化強度對養分有效性的影響，不同水勢狀態下養分離子在固、液相間的分配關系，以及不同水分條件下養分的擴散遷移規律等方面進行了探討。
  18. In the research, the infiltration characteristics of frozen soils and the characteristics of winter irrigation flow are studied all - sidedly and systematically in order to guide agricultural winter irrigation, but there a lot of work to do on the program for the complexity of the researched problem and the finiteness of research method and means in many aspects the problem has not yet been resolved or the research only stays on a level of qualitative investigation. due to writer ' s poor knowledge, there must be some faults and shortcomings in the paper

    本研究以指導農田冬季灌溉為主要出發點，對越冬期間的土壤入滲特性進行了較為全面深入的研究，但由於問題的復雜性和方法手段的有限性，許多方面的問題還未得到解決或者還停留在定性研究的水平上，加之本文作者的能力有限，文中定會存在一些缺點和錯誤，敬請各位學者和專家批評指正。
  19. Since most fertile lands have been cultivated, the expansion of the agricultural land has been extended to marginal and problem soils with poor nutrient supply

    因為大多數肥力較高的土壤都在進行種植，所以增加農業耕地面積只有向邊際地區和土壤養分含量低並存在某些問題的土壤上擴展。
  20. Introduction iron chlorosis of food crop plants and fruit trees grown on alkaline, or calcareous soils is a widespread agricultural problem in the world

    堿性及鈣質土壤上糧食作物和果樹的缺鐵現象在世界范圍內普遍存在。
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