Author(s):
Aditya Ranjan, Kamal Kant, Vijay Kumar Singh, Mahendra Singh and Birendra Kumar
Abstract:
The experiment was carried out in the Department of Horticulture (Vegetable and Floriculture), Bihar Agricultural College, Sabour to study the role of bio fertilizers and chemical fertilizers on onion production. The experiment was laid out in a factorial randomized block design, replicated thrice with onion variety Agrifound Light Red. The experiment was framed with bio fertilizers
viz., M
0- 0, M
1-
Azotobacter, M
2-
Azospirillum, M
3- PSB, M
4- VAM and four levels of chemical fertilizers, (F
1-N
80 P
40 K
60, F
2-N
100P
60K
80, F
3-N
120P
80K
100, F
4-N
140P
100K
120 having 20 treatment combinations. The results of the experiment showed that the fertility level F
3-N
120P
80K
100 with inoculation of M
2-
Azospirillum i.e., F
3M
2 the maximum average bulb weight (77.53 g), diameter of bulb (6.17 cm), bulb length (5.97 cm), bulb yield (438.56 q/ha) was recorded F
3M
2 treatment combination, and treatment combination F
1M
O shows lowest value. However, inoculation of
Azospirillum with soil application at the fertility level of F
3-N
120P
80K
100 was the most effective combination for higher net return and B: C ratio (4.70).
Aditya Ranjan, Kamal Kant, Vijay Kumar Singh, Mahendra Singh and Birendra Kumar. Effect of chemical fertilizers and bio fertilizers on growth and yield of onion (Allium cepa L.) production. J Pharmacogn Phytochem 2019;8(6):1518-1521.