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If B’s age be x years, then A’s age be (x - 3) years. According to question, => (x – 3)/x = 12/13 => 13x – 39 = 12x => x = 39 Therefore A's age = 39 – 3 = 36 years
Which clay mineral group is known for its ability to swell and expand when wetted?
The EC of Sodic soil is __mmho/cm at 25 ℃ .
Which soils are known as self-tilled soils
Which method measures soil moisture content by drying a sample in an oven and determining the percentage of moisture loss?
According to USDA classification of salt affected soils; a soil having EC >4 mmho/cm; ESP >15; pH
What is the color of the tag used for certified seed?
The indicator plant for zinc deficiency is ____
The study of soil from the stand point of higher plants is known as……………………….
Sodic soils are also known as_____
The Soil moisture potential at permanent wilting point is____
