
Физические и физико-механические свойства почвы
Quiz
•
Other
•
1st Grade
•
Medium

Назкен Жетибайкызы
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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Для минеральных горизонтов большинства почв плотность твердой фазы колеблется, г/см³
2,4-2,65
2,2-2,3
2,66-2,67
1,4-1,8
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Оптимальная плотность пахотного горизонта для большинства культурных растений, г/см³
1,2-1,3
1,0-1,2
1,4-1,6
0,9-1,0
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Отличный показатель пористости общей пористости для суглинистых и глинистых почв, %
55-50
<50
40-30
65-55
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Удовлетворительная пористость для пахотного слоя, %
55-50
70-65
50-40
>70
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Плотность сложения почвы в гумусовых горизонтах минеральнымх почв колеблется, г/см³
1,15-1,17
1,0-1,35
1,6-1,8
1,09-1,1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Пористость гумусного горизонта черноземов, %:
50-60
40-50
70-75
80-90
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Связанность, пластичность, липкость, усадка-это все
водно-физические
агрономические
физико-механические
общие физические свойства
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