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Dry farming is cultivation of crops in regions with annual rainfall less thsan 750mm. Dryland farming is done in area receiving annual rainfall betwee 750 and 1150 mm annually whereas rainfed farming is done in area receiving annual rainfall more then 1150 mm annually.
The term “operational holding” refers to
Soil texture is determined most commonly by which method?
Which of the following is a process of breaking down and altering the physical and chemical properties of rocks and minerals, leading to soil formation?
Why do sandy soils generally have higher bulk densities compared to clayey soils?
Which factor most significantly influences soil bulk density?
The absolute density of soil is also referred to as ……………….which is generally 2.60-2.75 gm/cm3
The larger the soil aggregates, the greater is the amount of ……………………….pores.
…………………..measures the proportion of cation exchange sites occupied by sodium.
Soil moisture potential is measured with the help of ______instrument.
Blue green algae is used for
