Buckwheat

Buckwheat is best adapted to a cool, moist climate, but it is easily destroyed by frosts. It requires a short growing season, generally from 10 to 12 weeks.

Buckwheat is capable of using soil nutrients that are not available to most other crops. Consequently it can be grown successfully on soils which are too low in fertility to produce profitable yields of small grains such as oats, wheat and barley. Buckwheat grows well on a wide variety of soils. It is well adapted to sandy soils and silt loams that are well drained. It tolerates a relatively high degree of acidity. For high yields good seedbed preparation is required.

Heavy application of manure and commercial fertilizers containing nitrogen is not desirable. However, moderate application of manure is beneficial on poor or heavy clay soils. Application of superphosphate is also useful.

Buckwheat is generally sown from June 15 to July 10. Late sowing is desirable because this crop is very sensitive to late spring frosts. Furthermore the seed requires somewhat higher soil temperatures than the cereals for good germination. Also, when buckwheat is sown late, maturity is delayed to a point where most of the blossoming occurs in cooler weather. Under these conditions a better set of seeds is usually obtained.

Buckwheat starts to blossom early and continues to bloom until the plants are harvested or destroyed by frost. As a result there are many flowers and immature seeds when the majority of the seeds are ripe and ready to be harvested. Generally the crop is harvested just before the first killing frost.

Найдите в тексте ответы на следующие вопросы:

1) What climate does buckwheat prefer?

2) Is application of fertilizers desirable?

3) When does buckwheat begin to blossom?

Вариант № 4

/ Перепишите следующие предложения, определите в каждом из них видо-временную форму и залог глагола-сказуемого. Переведите предложения на русский язык.

1.1. Though the weather was rather bad, the crop was harvested in time.

1.2. Annuals produce seeds the first year.

1.3. Wheat is grown to some extent on all six continents.

1.4. Today field workers in the south of our country are preparing for harvesting.

//. Перепишите следующие предложения и переведите их на русский язык, обращая внимание на разные значения слов it, that, one.

2.1. One has to study the structure of seeds of various plants.

2.2. It is the difference between winter and spring varieties that we have to know.

2.3. That farm is supplied with modern machinery.

2.4. The varieties they use are not the ones that give the best yields.

III..Перепишите следующие предложения и переведите их на русский язык, помня о различных значениях глаголов to be, to have, to do.

3.1. Frost has killed this young plant.

3.2. We have planted both tomatoes and cucumbers.

3.3. Do you study at the agronomical faculty?

3.4. We will do our best to get the best results possible.

IV. Перепишите следующие предложения и переведите их на русский язык, обращая внимание на бессоюзное подчинение.

4.1. I knew we should increase the gross grain output by 39 per cent.

4.2. The crop I want to speak about is greatly valued by plant breeders.

V. Перепишите и переведите на русский язык следующие предложения: обратите внимание на то, что в них просьба (побуждение) выражена с помощью глагола to let.

5.1. Let us discuss the advantages of this crop.

5.2. Let him do this job without any help. He is a good expert in plant selection.

VI. Перепишите следующие предложения и переведите их на русский язык, обращая внимание на функцию инфинитива, герундия и причастия в предложении.

6.1. The agronomist is asked by the students to show them the experimental plots with cereals.

6.2. The yield obtained is very high.

6.3. Improving soil fertility we increase crop production.

6.4. Improving soil fertility is our task.

VII. Перепишите и письменно переведите текст.

Дата добавления: 2015-10-02