Text water for the soil Read and translate the following words
Перемешав верхние три дюйма насыщенного грунта
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Перемешав верхние три дюйма насыщенного грунта, можно заставить нарушенную область образовать почвенную мульчу, которая эффективно сдерживает дальнейшую потерю влаги снизу.
Количество влаги в почве в значительной степени зависит от характера почвы, а также от количества осадков в этом регионе. На количество осадков человек повлиять не может, но можно многое сделать для экономии воды после ее выпадения. Таким образом, очень важно, чтобы фермер уделял должное внимание обеспечению наилучших условий увлажнения при выращивании своих культур. 3. Answer the questions on the text. 1. What happens if a plant lacks water? – If the plant is deprived of water, it will soon wither and stop growing. 2. What is the yield of crops usually determined by? – Yield of crops are determined by the conditions of moisture during the growth period. 3. What may the control of moisture determine? – The control of moisture through known means may determine the success or failure of crops in arid regions during a crucial period, and during the other periods of their growth it means the difference between a moderate and a good yield. 4. Why is it necessary to store as much water as possible even in humid climates? – The rainfall may be often scant during some parts of the growing seasons, and as plants draw heavily upon the water previously stored in the soil, there may not be sufficient moisture to produce crops. 5. What influences evaporation from the soil? – Evaporation from the soil is affected by the same factors as that from a water surface: heat, wind, sunshine, air humidity, and altitude all play their part. 6. What is the evaporation from a free water surface in the arid and semi-arid regions? – Evaporation from a free water surface in the arid and semi-arid regions ranges from about 35 to 60 inches during the growing seasons. 7. What is the total yearly rainfall in these regions? – Total annual precipitation in arid and semi-arid regions is only 3 to 30 inches. 8. What does moisture conservation consist of? – Having stirred the upper three inches of a saturated soil, one may cause the disturbed area to form a soil mulch which effectively checks further loss of moisture from below. 9. What is the role of soil mulch? – Soil mulch effectively restrains the loss of moisture from the lower layers of the soil. 10. What does a quantity of moisture in the soil depend on? – The quantity of moisture in the soil is largely due to the nature of the soil as well as to the precipitation of that region. 11. What is highly important when raising the crops? – When farmer raising the crops, he must pay proper attention to securing the best possible moisture conditions when raising his crops. 4. Insert the following prepositions: of, in, by, near, through, upon, at, from, during. 1. Should this rainfall be allowed to remain Download 24.53 Kb. Do'stlaringiz bilan baham: |
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