A. Whole plant
B. Leaves
C. Stem only
D. Flowers only
Related Mcqs:
- The available form of nitrogen for plants is_________________?
A. NO3
B. NH4
C. Both a and b
D. non of these - Preferable form of nitrogen for rice under submerged soil conditions is ____________?
A. NH4
B. NO3
C. NO2
D. All of theseSubmitted by: Muhammad Rehan
- One hectare is equal to___________________?
A. 3.47 acre
B. 2.471 acre
C. 1.71 acre
D. 1.9 acre - Excess of nitrogen to plants causes_________________?
A. Delay in ripening
B. Delay in growth
C. Delay in germination
D. All the above - The enzyme responsible for biological nitrogen fixation is________________?
A. Lipase
B. Nitrogenase
C. Isomerase
D. Kinease - Azolla which fixes nitrogen in rice field is__________________?
A. Bacteria
B. Fungi
C. Ferm
D. None of the above - The application of fertilizer nutrients in proportions best suited to the needs of the crop is called_________________?
A. fertilizer placement
B. fertilizer use efficiency
C. Nitrogen use efficiency
D. Balanced fertilization - Fertilizer application before seed sowing is called__________________?
A. Top dressing
B. Broadcasting
C. Basal application
D. Drilling - The negative logarithm of the hydrogen ion concentration, a measure of the acidity of a solution is called_______________?
A. pH
B. EC
C. Cl
D. Saliruiy - Solar energy emitted by sun reaches the earth surface absorbed and returned back in the form of___________________?
A. Infra blue radiation
B. Infra red radiation
C. X rays
D. None of the above