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spray. Both soil profiles showed the clear disjunction between the organic layer
and the mineral soil and the absence of crumb structure which are characteristic
of mor soil. In New South Wales, Australia irrigated pastures from which
earthworms are absent may accumulate surface mats up to 4 cm thick and
containing ae much as 147 kg/ha of organic nitrogen. In some of these sites
where earthworms have been introduced experimentally, the mixing of voided
earth with the litter has led to the disappearance of the mat as a discrete layer.
II. Remember the following words, consult a dictionary about the way they are
pronounced:
horizon горизонт, (геол) ярус; отложение одного возраста
eliminate уничтожать, ликвидировать
vegetation растительность
decompose разлагаться, гнить
herbage травы
orchard фруктовый сад
poison яд
spray жидкость для пульверизации
profile профиль; очертание, контур
crumb крошка
voided пустой; лишенный чего-либо
litter подстилка
III. Suggest the Russian for:
to decompose readily; mineral soil; to be clearly defined; dead herbage; discrete
layer; earthworm activity; crumb structure; organic matter; to be attributed to...;
partly decomposed herbage.
IV. Suggest the English for:
основная причине; гниение органического вещества; полное отсутствие;
органический азот; накопление органического вещества; в результате...;
популяция земляных червей; органический слой; неоднократное
применение; быть характерным для чего-либо.
V. Point out which of these sentences contains the information from the text.
1. Soil provides the water and mineral salts which plants require as food
material.
2. When the organic matter is mixed with the soil it decomposes readily.
3. the soil water contains oxygen dissolved from the air.
4. As the plants die they form humus.
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