专业外语(精华版).doc

尽可能使作物Lj环境向协调.统 一，平所，人工创造出作询生有 所需的处佳疏合环境条件77T而 实现园艺？物段培的优质、高 产、高效-|ln the protected crop cation exchange capacity? definition for ^soilless adioactive photosynthates from hpeninq ones9cultivation .the most imponant The caiion exchangecultiyaiipn ? nonbearing spurs moved 能、How goals of growers in the control is jhe storage for soilless cultivation is defined as fruits on adjacent 凯制 thguahty ol horticultural n 7 、 msg of climate is making th 吧"旭伪 a 眼 other ions .that the subsrtates for crop spurs . Radioactive 海皿 dump and aMr harvest?solarqr 舞 nhou 泡 look like? lesson 2 relationshp between crops and d0terni,n,n9 lhe nutri0nt supply growing are not soil . but are carbohydrates synthesized affect theA Chinese greenhouse environments as harmonious.or soil ,ertilitV ^me soil substitute such as th loaves on vigorously o1 horticultural cropsconsists of a brick wallQoals in the control o< uniform, and balance as 2 what s soil texture ? what bqhiweiqhl media，n 8nlainersarowina shoots remained 小倒质 which main" coniains east-v/est. On its soulhem areenhouse climat。

possible according to crop; do】s 脸 soil salinitv mean? or bags.pots irrigated with principally within the treated ：wo Zspe^s—th, pickinqside, a transparent surface The most important goals ^characteristic andits demand There are three particle size nutrient solution , Or there are shoots temperature and the storageconsisting of steel frames or lhe control of greenhouse ,or environment, in order to classes no any cultivating media bul 3、Why does the dwarl apple temperature Suitablecreate the optimal condition fordislin9uish0d:<0 002*0：002 0 0 onlV something for supporting限以g硕以口瓯旻丑函页旦位smporatur。

can keep the crop growth, thereby, achieve 5 "d 0.05-2mm,defined as plants and crops are directly __gfoduce_thao_ respiration of cells in a lowthe high quality. high clay silt ,and sand .respectively.growing in the nutrient solution, standard aoole tree? condition and then reduce theproduction and high deficiency ThG 面乌 between those 2,_pl萸德 剑陷_四_NET _寒1炽_膻 terms」她! loss of nutrition. To ensure highin horticultural crop cultivation, "actions classifies the texture system... saturation and 8mDonsation cgmcyihy quality, harvestD.Risk anagement(prevention t^on3 国艺位艮模型 0, lhe soil . The soil sahnnyNFT growing systems conststpoim with reSpect to other should be scheduled during the^scribe the of calamities) ,1. Accordina 1。

旧仰ans it aHects plant growth of series of narrow channels coolest part of the dayand呷呷呷16 P可辫 E Environment goalsfuse 0<如川用 ghat is thaim 丞尸 气财乎哩 the osmotic through which nutrient Light saturation point is the maintain proper temperature in 事JKa如DM 血,N地凰期寒? pestiCKies and energy) Q^enhou^oper^P Potent,al of the soil solution solutong is re-circulated 牝皿晌小 intensity at which the I卸 cold storgwooms.Simple over-winter sheds used F. Optimal crop condition(on ^e"aim "of a^Teenhouse ^典同 plant water stress and supply tank . Its basic photosynthetic rate reaches a 3、What is the field heat and up to the 1920s and behalf of previously named 而 is to %ll itsdecreas.^ater uptake characteristic ts the shallow maximum tevel at a grven store frames, placed against goals) products which have nutritional ~~ d叩出 0, solution that is -一呼 walls to Protect vines were G.Cost or ornamental consumer value, Hphotographed in 1928. At the rnanagement(energy.CO2.labo t0 acquire an income such that 皿，•，小 , f ,beginning of the 20th century, r) . 7, .. 静 竹*审丽s of 腿 soil are ofsom前m—s systems90%of the area used for 2. How do eou understand the : t f areatest importance?%cted cultivation in the statrnent Mect^ 2.Acrdinq t。

figure 3・i, MiatNetherlands consisted oi cold cultivate is an economic frames or hotbeds .the dutch light double frames.was introduced beginmna of the century. There were 32.9 km 2 capital ,labors and some other glasshouse in 1950. things to qet benefit from the4. Could you Wase think production .Therefore .Climateabout the develQDment of control of greenhouse must be Qreenhouse cultivation in seen within the framework of china? the total business goals .suchIn~~ 50s and 1960s,main as high production of good protected types were quality products right wind break, cold and hot frame .time .at acceptable cost and Large plastic house and acceptable risk ,and with an solar-greenhouse appeared in environmental impact v/hich is china from early 1960s. as limited as possible. Energy-saving solar 3fovvgreenhouse is the leading tape its Qrowinq surroundinQs?in our country today. The Response ol the crop t。

芯而心昨 f 血 information development of large surroundings contains mode" greenhouse and ridge and slow-reacting and fast-reacting L furrow multi span house has process .Slow-reactingbegun to set up. processes are Jor5, please list protected facilities example .leaf and flower currently used in china? development .morphogenesis ,Protected facilities currently and fry matter used in china include wind 。