Plant Nutrition:
Depending upon the amount of each nutrient required the mineral nutrients are divided into …….groups
a) two
b) three
c) four
d) five
Which of the following are the primary macronutrients in plant nutrition?
a) N, P, K
b) Ca, Mg, S
c) B, Cu, Fe, Cl
d) Mn, Zn, Mo, Co, Na
Which of the following are the secondary macronutrients in plant nutrition?
a) N, P, K
b) Ca, Mg, S
c) B, Cu, Fe, Cl
d) Mn, Zn, Mo, Co, Na
Macronutrients tend to be..…available in soils with low pH.
a) high
b) less
c) moderate
d) independent of pH
Micronutrients tend to be ………available in soils with high pH.
a) high
b) less
c) moderate
d) independent of pH