NPK - Biofertilizers
i. Azospirillum sp.
Azospirillum sp. fixes atmospheric nitrogen in loose association with plant roots. Azospirillum sp. converts atmospheric nitrogen into ammonium form and provides 30-50% of nitrogen requirements. Azospirillum sp. produces plant growth promoting substances viz, vitamins, auxins and gibberellins which influences plant growth to a large extent. Azospirillum sp. application enhances seed germination efficiency, early seedling vigor.
ii. Phosphate solubilizers (Bacillus sp. and Pseudomonas sp.)
Phosphate solubilizers (Bacillus megaterium var. phosphaticum and Pseudomonas striata) dissolve fixed phosphate into plant utilizable form. Phosphate solubilizers produce organic acids (viz, citric acid, succinic acid, lactic acid, etc.), hormones (viz, indole acetic acid, gibberellins etc.) and enzymes (viz, phytase, nuclease, lecithinase etc.) that help, in solubilisation of insoluble phosphates into plant utilizable form.
iii. Potash mobilizing bacteria (Frateuria aurentia)
The microbe, Frateuria aurentia is a beneficial bacterium capable of mobilizing available Potash into near the roots of the plants. It works well in all types of soil especially, low K content soil. Use of such bacteria in powder form can increase the availability of more potash in usable form to the plants.
Cereals - rice, wheat, millet, Vegetables - Bean, Black eyed Pea, cabbage, cauliflower, lettuce, Carrot, Cucumber, Eggplant, Melon, Mustard, Onion, Parsnip, Pea, Pepper, Potato, Radish, Spinach, Squash, Tomato, Turnip, Rose and other flowering shrubs including Camellia, Hibiscus etc.,
Apply 10 Kgs/ha after mixing it thoroughly in well decomposed organic matter, can be applied as band placement / side dress application at the time of planting or during early stages of the cropping.