6. Name in English all the methods you know to apply fertilizers.
7. Read text B without a dictionary. Identify the meaning of the underlined words according to their Russian equivalents and to the context.
TEXT В
Essential Minerals
То grow well, plants, like animals and people, need a balanced diet of several specific minerals.
The minerals required by plants may be divided into two groups: macronutrients needed in relatively large amounts, and micronutrients needed in much smaller amounts.
Among macronutrients, nitrogen, potassium, and phosphorus are known to be primary plant feeds. They are most often applied as commercial fertilizers. But to be absorbed and used by plants each of them must be combined with some other elements. For example, nitrogen is believed to be more available to plants when it is combined with oxygen as a nitrate or with hydrogen, making ammonia.
Among the other macronutrients, calcium is an important plant food, being the main constituent of lime. If a soil is very acid, with a PH value less than 5.0, lime can be added to correct acidity. All plants are affected by the degree of acidity or alkalinity of the soil, high acidity making some elements unavailable to plants. The presence of lime is found to make essential plant food elements more easily available.
Nitrogen, phosphorus and potassium are more easily available in a well limed soil than in an acid soil.
There are seven micronutrients – iron (железо), manganese, zinc, molybdenum, copper, and chlorine. They are not often applied as fertilizers. But they are also essential for plant growth and may play some role in respiration or photosynthesis.
8. Express the main content of text В in Russian as short as possible.
Listening and Speaking Focus
Watch the video, answer the following questions:
1. Where do plants get their food from?
2. Why plant can have stunted growth?
3. Why plants can have yellow leaves?
4. What nutrients does the plant need?
https://youtu.be/w_x-WDdQdxI
UNIT 13. CROP ROTATION
| In this unit you will learn: | Grammar focus: - Compound subject and predicate . - Functions of the Infinitive (revision). - Word meaning: to result. Vocabulary focus Reading and comprehension focus: - Text A. Crop rotation. - Text B. Beneficial effects of proper rotations. Listening and speaking focus |
Grammar Focus
| Несколько глаголов, использующихся в качестве сказуемого при сложном подлежащем, употребляются в действительном залоге. В русском языке им соответствуют "оценочные" слова (т.е. слова, выражающие уверенность или неуверенность говорящего): to seem , to appear , to be likely – "вероятно", "по-видимому", to be unlikely – "вряд ли", to be sure , to be certain – "безусловно", "наверняка". |
Top-dressing is likely to be the best way of applying fertilizers to this crop.
Поверхностная подкормка, no-видимому, является лучшим способом внесения удобрений под эту культуру.
Potatoes are sure to grow well on light soils.