Who among the following is the author of the book

"Brown Manuring", a recent approach of weed control which is mostly used in crop of -

When rain falls on any material on ground having subfreezing temperatures and freezes into sheet or coating ice then it is known as:

In the context of insect pest management, under which of the following conditions would the sterile-male technique be least effective?

Saline soils can be improved by –

Ginning term is related to which of the following crop?

The period of life at which the reproductive organs first become functional is termed as ………………………….

According to Planning commission, Indian region is divided into how many agro climatic zones?

Which of the following chemical is used to break the dormancy of potato seeds?

One ha cm water equals to -

Example of C4 weed is