Correct Answer : 1964
Correct Answer : Yield more crops
Crop rotation contributes to increased yields through improved soil nutrition. By requiring planting and harvesting of different crops at different times, more land can be farmed with the same amount of machinery and labour.
Correct Answer : Natural substances
Correct Answer : Jaya
Correct Answer : increase in the salinity of groundwater
Correct Answer : Dhaka
Correct Answer : Maize
Correct Answer : tobacco field
Correct Answer : Seed-Fertilizer-Water technology
Correct Answer : Second