If a manure pile is exposed to the rain, what nutrient will be lost the most ?
If a manure pile is exposed to the rain, what nutrient will be lost the most ?
A. Ca
B. Mg
C. S
D. N
A. Ca
B. Mg
C. S
D. N
A. Ca(free cation
B. CaO
C. Ca
D. None of the above
A. 20-30ºC
B. 25-35ºC
C. 28-30ºC
D. 25-30ºC
A. 1-3 weeks
B. 1-4 weeks
C. 1-6 weeks
D. 1-8 weeks
A. Bacterium
B. Virus
C. Fungus
D. Algae
A. Mature leaf
B. Lower leaf
C. Both A & B
D. None of these
A. Peat soil
B. solonchalk soil
C. Muck soil
D. Both a and c