Leaves of coca bush yield __ .

List three scientific approaches to obtain high yield of crops.

Farmers in a particular region we concerned that pre-mature yellowing leaves of a pulse crop might cause decrease the yield which treatment could be me beneficial to obtain maximum seed yield ?

Leaves of Nelumbo plant are

What is the role of soil in better yield ?

Saponification of coconut oil yields glycerol and

What are weeds ? How does it affect the yield of crop ?

Write three disadvantages of high yielding varieties of crops.

Write the conditions for maximum yield of NH_3 .