Question

fill in the blanks
1)NPK fertiliser supplies ............... , ................. and .................. to the crop.
2)The practice of leaving the field uncultivated for a long time is called ................ .
3)Hoe is an agricultural tool used for ..…………… the soil and .………… .
4)Combine is a machine used for ................ and ..................... .
5) 2,4-D is used as a ............. .

Answer 1

1)nitrogen, phosphorus and potassium.
4)thesher and harvester.