Test Mode
Reading Mode
Right = 0
Wrong = 0
সাধারণ জ্ঞান
ধুলোবালি দ্বারা বাহিত রোগ-জীবাণুর হাত থেকে ফলকে রক্ষা করে
Climatic factors like air, light etc.
Surface features like hills, rivers, valleys etc
Varieties of crops like high yielding rice, traditional ptoatoes etc
Soil conditions like alluvial soil, sandy soil etc
different crops on the same piece of land in different seasons
only one crop, over and over again on the same piece of land
more than one crop during the same season
cultivating only profitable crops
To expand our cultivable land
To retain the fertility and productivity of land f
To use high yielding crops effectively
To sow and harvest crops easily