Tham khảo tài liệu 'tiếng anh chuyên ngành nông nghiệp – phần 4', ngoại ngữ, anh văn thương mại phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 57 III. Fill in the gaps with given words in the box. breakage substitute to meet activation growth sugars significant to move vital role which Function of potassium in plants Potassium is known to play a. . 1 . .in photosynthesis the process by which the sun s energy in combination with water and carbon dioxide is converted into. . 2 . .and organic matter. It has also been shown that K plays a key role in the . . 3 . .of more than sixty enzyme systems in plants. Contrasted to other elements . . 4 . .are involved in the formation of the cell structure K functions in the cell sap. Its high mobilitypermits it. . 5 . .quickly from cell to cell or from older plant tissue to newly developing tissue and storage organs. Inadequate K . 6 .the needs of all plant parts diminishes. 7 .and subjects crops to undesirable traits such as increased disease stalk and stem. 8 . and susceptibility to other stress conditions. Nitrogen N is usually the most universally deficient plant nutrient but one element cannot. . 9 . .for another. It has been said that N is the most important yieldincreasing plant nutrient but K is the most. 10 .in stabilizing yields. IV. TRANSLATION. Translate the passage into Vietnamese. __ _ Judge a man by his work 58 UNIT 9 THE FUNCTIONS OF PLANTS I. Word study. 1. Find the words which have similar meaning. a. operate or work - edible b. decrease - diversity c. eatable - reduction d. unchangeable state quality - catastrophes e. pleasant smell - stability f. great disaster - glare g. variety - aroma h. strong unpleasant light - epidemics - suntrap - mulch - epidemics - resistance - extract - species - classification - timber - windbreak 2. Match the words on the right with the definitions on the left. a. placing plants into groups according to similarities of structure origin or flowers and fruit. b. row of trees that give protection from the wind. c. warm sunny place that is sheltered from the wind. d. wood prepared for use in building or carpentry. e. .
