In which of the following Olympics was field hockey

Which of the following statement about Pteridophytes is incorrect?

During rainy and winter season how sowing of maize is done?

T and V system is a good example of:

Cue lure, poison baiting is an effective management practices for: 

A special practice in which male buds are removed after completion of female phase is done in which fruit crop_______

Essentiality of zinc in plant was discovered in 1926 by

Which of the following type of mouth parts present in Cockroach and grasshopper?

What is the unit of LD50 ?

First KVK in India was established at

Which of the following is the algal symbiotic of Azolla responsible for biological N fixation?