Percentage of N in Ammonium ritract fertilizer is___________________?
Percentage of N in Ammonium ritract fertilizer is___________________?
A. 21
B. 23
C. 33
D. 39
A. 21
B. 23
C. 33
D. 39
A. N,P,K
B. C,H,O
C. Ca,Mg,S
D. All the above
A. Oil
B. Protein
C. Vitamin
D. All the above
A. Green manure increases the availability in organic from to the next crop
B. It does not affect the availability of phosphorous to succeeding crop
C. Greater amount of phosphorus is taken up and converted into organic form, which is released on decomposition of green matter
D. It fixes the P2O5 through humus and reduces the availability..
A. Affects more than five characters
B. Affects more than ten characters
C. Affects only one character
D. Affects more than one character
A. Thoday (1960)
B. Mather (1951)
C. Allard (1957)
D. Johannsen (1903)
A. Canada
B. Iran
C. Mexico
D. India