main crop 中文意思是什麼

main crop 解釋
主伐林木
  • main : adj 1 主要的，主，全，總。2 充分的，盡量的；全力的，有力的。n 1 體力，氣力；力〈僅用於 with might...
  • crop : n 1 農作物，莊稼；收獲；收成；〈the crops〉 一季的收獲量，產量。2 （同一時期出現的人物等）一批，...
  1. I see. what is the main cash crop

    我明白了。那主要的收入來源是什麼呢？
  2. Snack food is the main cash crop

    小吃，零食是主要的收入來源。
  3. In this paper, two major types, the natural vegetation and crop vegetation in luota are studied. we can gain the different distributive area by remote sensing technology, in accordance with conifer forest, broadleaf forest, thick shrub forest, shrub forest, herbs shrub forest, herbs naked rock and crop vegetation. the valuation of the output of standing trees, water conserbancy, soil conserbation to control erosion and purify the air is the main basis which is used to value the functions of the forest ecosystem of the conifer forest and broadleaf forest of luotathe result reveal that the total ecological function value of the forest which area is 1388. 8 hm2 is estimated up to 18. 36 million yuan per annum. the synthetic valuation system of luota vegetation is put forward by the valuation of per hm2 in evergreen - deciduous forest, conifer forest, conifer and broadleaf forest, broadleaf forest, scatteredtree - shrub forest, coppice - shrub forest, herbs shrub forest, econamic crop and cereal crops. the plant resources is valued according to the ornamental and green plant. lumber trees and medical plant. ornamental plant includes hosta plantaginea. lilium brownii van viridulum, spiraea cantomiensis and so on. lumber tuees includes zzzelkova schneideriana, emmenopterys henryi, catalpa fargesii and so on

    本文把洛塔現存植被分為自然植被與栽培植被兩大類進行研究，通過遙感技術對現存植被按針葉林、闊葉林、密灌、灌叢、草灌、荒草裸巖、農作物植被等類型進行分佈面積的統計，在此基礎上，以林產品價值、涵養水源價值、保護土壤價值和凈化空氣價值作為估算的主要參考依據，對已成林的針葉林與闊葉林進行森林生態系統的價值估算，得出面積為1388 . 8hm ~ 2的針葉闊葉林的森林生態價值為1836 . 37萬元，參照這一生態價值量，把洛塔植被按常綠落葉林、針葉林、針闊混交林、闊葉林、疏林?灌叢、矮灌叢、荒草灌叢、經濟作物和糧食作物，以每hm ~ 2的價值量提出了洛塔植被的綜合價值體系。
  4. Incipient shearing of main crop ore shows the development of hairline mylonitized shear zones that rapidly increase up to 2mm in width.

    主茬礦石的初始的錯動是呈毛發狀的糜棱巖化剪切帶，然後很快地增大到2毫米寬。
  5. The harmfulness caused by the low temperature in wintertime to the main tropic and south subtropic crop and fruit was discussed and summarized

    討論和總結了冬季低溫給廣東主要熱帶南亞熱帶作物帶來的危害。
  6. In addition, we use correspondence analysis to research the agriculture yield of each city and the main crop regions are obtained, the conclusions is more reasonable

    此外，還對各市縣農業現狀進行對應分析，得出各市縣農業產業結構特徵和主導產業，結論較為合理。
  7. Rubber tree ( hevea brasiliensis ) is an important economic woody - crop in tropical areas. its latex is the unique source of crude rubber used in current industry. because of its special and important use, the rubber tree has been extensively planted in tropical areas. increase production is always the main target in rubber tree cultivation. since the ethrel was applied in increasing latex production in 1968 for the first time as a chemical stimulant, not only the latex production had been increased largely, but also a new set of rubber tapping system had been established, leading to a series of economic benefit. owing to ethrel " s extensive application, its side effects had been found more and more obviously, such as tapping dry, speeding up senescence, shortening the life span of rubber tree etc. in order to overcome the side effects and increase production more availably, for a long time, people had carried out lots of research work on cell level, membrane level, physiology and biochemistry of laticifer contents. but the mech anism why ethrel increased latex production was not yet understood completely. this study had cloned the ethylene receptor gene ( efrl ) from rubber tree, and researched the relationship between etrl expression in laticifers and ethrel stimulation on transcription level and protein translation level. the results were as follows : 1

    但是，由於乙烯利應用的普及，乙烯利刺激割膠引起橡膠樹發生死皮病及加速膠樹衰老，縮短膠樹壽命等副作用也越來越明顯。為了克服這些副作用，使乙烯利能更有效地刺激增產，長期以來，人們在細胞水平、膜水平和乳管細胞內含物的生理生化層面上進行了大量的研究，但仍未完全了解乙烯對膠樹的作用機制。本研究從分子水平入手，克隆橡膠樹的乙烯受體基因（ etr1 ） ，並在轉錄水平和蛋白質翻譯水平上研究etr1基因在乳管細胞中的表達及與乙烯刺激的關系，取得了以下結果： 1
  8. The main fruit seasons are in may and in october / november, and it is usually at these times that the crop is harvested

    它的結果期主要在五月、十月或十一月，而收獲期也大約在這一期間。
  9. Based on the observation made on the main crops such as wheat, corn, cotton etc., the observed data from the limited irrigation test for three years are obtained, and then the test data are analyzed with the theory of soil moisture movement and the model of farm crop ' s evaporation is established under the condition of insufficient irrigation

    摘要通過對小麥、玉米、棉花等主要農作物的分階段受旱試驗，獲得了三年的限額灌溉試驗觀測數據；採用非充分灌溉條件下的土壤水分運動理論分析試驗數據，建立了限額灌溉條件下的作物蒸發蒸騰模型。
  10. There was a main spring crop and few figs cerp in the other period on the male trees ; and a main summer crop and a second autumn crop on the female trees ; and showed a temporal gap of teo months between male s and female s main crop

    在開花物候上，雄株有一個春季主要花季，在其餘期間維持少量榕果花季。雌株有一個夏季主要花季及秋季次要花季。雌雄榕果花季間有二個月的時間間隔。
  11. Main products for oil and foodstuff industry : grinding rolls for grain mill ( including rolls for grain mill imported from ltaly and switzerland ), rolls for noodle machine, rolls for all kinds of biscuit machines, rolls for oil crop, salt industry and cotton and flax machines, and rolls for feedstuff and tobacco machines

    糧油食品主要產品：磨粉機磨輥（包括義大利、瑞士等進口磨僂機用輥） ，面條機、方便麵機用輥，各種餅干機輥、油料、鹽業、棉麻機械用輥及飼料、煙草機用輥。
  12. Main results are generalized as follows : in dry year, coupling fitness of water requirement to rainfall reaches 90 % for sorghum and spring millet during crop ' s growth and reproductive season in shunyi county, while 85 % for peanut and soybean, 70 % for spring com and cotton, 65 % for alfalfa, and 55 % for cropping pattern of rice followed by wheat

    主要結論包括： 1 ）順義區乾旱年型下，高粱和春谷全生育期需水與降水的耦合度達到90 ；花生和春大豆其次，達到85 ；春玉米和棉花為70 ；苜蓿65 ；水稻和冬小麥?夏作物組合耦合度只有55 。需水量和灌溉定額則與耦合度大小相反。
  13. ( 2 ) the main models of agroforestry in three gorges area include courtyard composition, contour hedgerows, chinese fir - rhizome composition, fruit - crop intercropping, and so on

    （ 2 ）庫區農林復合經營的主要模式有庭院復合、生物籬埂梯地復合、杉木-黃連復合、杜仲。
  14. The first part is about the computing of crop water requirements ( or crop evapotranspiration ) and net irrigation requirements ( nir ) of ten crops in bojili irrigated district. then the traditional irrigation schedules of winter wheat and summer maize, which are the main crops in bojili, were evaluated with simulating model isareg. third, the field application efficiency in the experimental areas was evaluated from three methods

    本文即是由灌區實測資料計算各種作物需水量，推求其凈灌溉需水量；然後通過模型檢驗現行作物灌溉制度是否具有合理性，並對田間灌溉系統進行評價，求其實際田間灌溉效率；最後由兩種不同灌溉制度方案的對比，確定試區合理的作物灌溉制度，在此基礎上求出各代表年的田間灌溉需水量和用水過程線。
  15. What was prince edward island ' s main food crop

    愛德華王子島上居民的主食是什麼？
  16. This research was conducted to : ( 1 ) understand the characteristic and pattern of trickle source infiltration, ( 2 ) study mulched crop evapotraspiration for cotton and corn in a arid climate sandy loam soils. according to the researches of the dissertation, the main results are as follows : ( 1 ) the shape of wetted soil volume is influenced by soil texture, discharge rate and the total volume of applied water in case of trickle source infiltration

    本文以粘壤土為研究對象，對微源入滲特性規律進行了系統的室內試驗研究，並且對膜下滴灌大田作物棉花和玉米的需水規律進行了野外試驗，得到了以下幾點結論： （ 1 ）地表微源入滲土壤濕潤體的形狀受到土壤質地、供水強度和灌水時間的影響，一般為半個橢球體。
  17. Apply fertilizer present situation and countermeasure of main crop in xiangfan city

    襄樊市主要農作物施肥現狀及對策
  18. Based on the drcc analysis, the section 5 analyzes the comparative advantage of the main crops in the zhejiang province as compared to the whole nation, we prove that : ( 1 ) as compared to other provinces in china, zhejiang province lacks the advantages of the production of the main crop ; ( 2 ) there exists great differences in the crop production of different districts in zhejiang provinces ; ( 3 ) as far as the rice and cereals are concerned, some districts in zhejiang province is of certain advantages

    第五部分，經過基於國內資源成本系數對國內、省內主要農產品區域的生產比較優勢的分析，其結果顯示出： （ 1 ）與國內省份比較浙江總體上缺乏糧棉油等主要農產品的生產比較優勢； （ 2 ）浙江省各地區就不同農作物的生產比較優勢具有較明顯的差異性； （ 3 ）就不同品種的稻穀生產方面，浙江的有些區域仍具有一定生產比較優勢。
  19. Cotton is the main crop with 1, 100 ha, and the rest is cultivated with corn or soybean

    1100公頃棉花是主要作物，其餘種玉米或大豆。
  20. Paddy is the main crop in hangzhou, and its water use play an important role in water distribution of hangzhou city

    水稻是杭州市最主要的農作物，其用水量對整個杭州市水資源的配置起著舉足輕重的作用。
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