Green manure plants belong to
Compositae
Solanaceae
Poaceae
Leguminosae
Which organisms are used to increase thesoil fertility ?
Which of the following groups of plants are highly useful in increasing soil fertility
Azolla is used as biofertilizer as it has
Farmers have reported over $50\%$ higher yields of rice by using which of the following biofertilizer
Which is correct about nitrogen fixation by legumes. They fix nitrogen through