The term used for the process of separation of grains from chaff is

Propagation of ginger is generally done using

Which of the following statement is not true for organic manure?

Read the statements given below.

(i) seeds require moisture for germination

(ii) plants can absorb nutrients mostly in dissolved form

(iii) irrigation protects crops from both frost and hot air currents

(iv) irrigation improves soil texture

Choose the combination of statements which indicate the need to irrigate crops.

Which of the following tools would a farmer use to remove weeds from the field?