CHAPTER II.
HISTORY OF DEVELOPMENT OF SOIL SCIENCE.
Importance of genetic soil science in Russia and abroad………………………..10
II.2. Development and importance of soil science in the Republic of Uzbekistan……………………………………………………………………….13
CHAPTER III.
THE NATURE OF THE PROCESS OF SOIL FORMATION.
III.1General scheme of soil formation……………………………………………16
III.2.V.V.Dokuchayev's teaching…………………………………………………19
III.3 Soil-forming factors………………………………………………………….21
III.4.Mechanical composition of soil……………………………………………..26
III.5. The function of the effect of soil cover on the composition of the atmospheric gas…………………………………………………………………………………28
III.6.Chemical composition and phases of soil…………………………………..29
III.7. The concept of biochemical oxidation of humus formation………………31
III.8. The formation of humus (specific organic matter) in the soil and the basic theories about it………………………………………………………………….31
CHAPTER IV.
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