1. 3 The soil having been supplied with too little nitrogen, a low yield of corn was obtained.
3. Late planting of this crop is undesirable because the plants may be injured by early frosts in autumn.
4. Obtaining of high-quality stand is influenced by both rate and depth of seeding.
5. Having been sown in a warm and moist soil the seed began germinating quickly and uniformly.
6. Fertilizers having been applied at the due time, the yield of potatoes increased greatly.
12. Say it in English :
основные факторы получения хорошего травостоя; зрелые семена с хорошей всхожестью, без примесей; влажная, уплотненная, достаточно теплая пашня; быстрые и дружные всходы; соответствующая глубина и норма высева; оптимальные сроки сева, борьба с сорняками, внесение удобрений.
Listening and Speaking Focus
Watch the video and describe the manual process of planting seeds.
https://youtu.be/3FGxEYWAPf8
LESSON 7.2. GERMINATION.
Grammar and vocabulary Activities
1. Identify if the the highlighted words are used as conjunctions or prepositions. Translate the sentences.
1. The seed does not germinate because of low soil temperature.
2. The seed does not germinate because the soil temperature is too low.
3. The roots of winter crops should develop properly before winter.
4. The roots of winter crops should develop properly before winter begins.
5. The seed started to germinate after rain.
6. The seed starts to germinate after the soil has become warm.
7. Many factors are essential for the germination of the seed.
8. The seed will not germinate for a long time, for the soil temperature is too low for it.
2. Choose the appropriate word.
1. The functions of roots and leaves differ, ... manufacturing, carbohydrates by the process of photosynthesis (the former, the latter).
2. Soil air contains ... oxygen than the atmospheric air because both plant roots and microorganisms use oxygen for respiration (more, less).
3. The amount of nitrogen in the soil increased ... the beans had been grown ... two years (before, for, after).
4. The growth of carrots was ... by our having irrigated the crop during the growing season (followed, influenced).
5. When high quality seed is not... farmers sow poor seed producing low yields (valuable, available).
6. The quality of the stored seed was reduced ... bad storage conditions (due. to, due).
7. One cannot obtain a high yield... the conditions of growing are favourable (if, unless).
8. The structure of the soil is affected by ... time and method of cultivation (proper, properly).
9. .... wheat alfalfa has a tap root system (like, unlike).
