Which of the following methods of irrigation is best for a farm with an undulating…
Which of the following methods of irrigation is best for a farm with an undulating landscape? A. sprinkler…
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The most unreliable source of farm power is
The most unreliable source of farm power is A. wind B. water C. electricity D. machine Correct Answer:…
In the nitrogen cycle, nitrite is oxidized to nitrate by
In the nitrogen cycle, nitrite is oxidized to nitrate by A. nitrobacter B. nitrosomonas C. azotobacter D. rhizobium…
Leguminous cover crops do not
Leguminous cover crops do not A. bind the soil particles together through their roots B. increaes the nitrogen…
Which of the following will not lead to loss of nitrogen compounds from the soil?
Which of the following will not lead to loss of nitrogen compounds from the soil? A. crop removal…
A disadvantage of using organic manure on the soil is that
A disadvantage of using organic manure on the soil is that A. it decreases the potassuim content of…
The most important soil micro-organism causing decay and nutrient recycling are
The most important soil micro-organism causing decay and nutrient recycling are A. bacteria and fungi B. fungi and…
Which of the following soil water is tightly held to the surface of soil particles?
Which of the following soil water is tightly held to the surface of soil particles? A. hygroscopic water…
The use of land for agriculture is not influenced by
The use of land for agriculture is not influenced by A. labour B. climate C. topography D. population…
Igneous rocks formed within the crust are called
Igneous rocks formed within the crust are called A. guartzite B. volcanic C. plutonic D. stratified Correct Answer:…