Seedling growth and crop yield of onion in response to transplants age and fertilizer application in nursery
2014
Rashid, M.
Onion (Allium cepa L.) is the second important horticultural crop after tomatoes. The main problems in onion production in Punjab are short period of supply from Punjab, little contribution of Punjab in overall production, and low stagnating yield of onion. Planting time, cultural practices, method of transplant production transplant age and fertilizer application rate effect onion production. Therefore, an experiment was designed to evaluate the effect of transplant age and different fertilizers applied at nursery stage on onion nursery production as well as crop yield. For this purpose, seed of four onion varieties were sown in nursery using various fertilizer levels, and transplanted seedlings of different age and were transplanted in field. The experiment was laid out according to randomized complete block design (RCBD) under factorial arrangement in nursery and field with three replications. Data was recorded for various growth related parameters (number of leaves per seedling, seedling diameter. shoot length of seedling, root length of seedling, fresh weight of seedling, dry weight of seedling) before transplanting and yield related [height of pseudo stem, number of leaves per plant, maximum leaf length, bulb diameter, bulb neck diameter, bulb weight before curing. bulb weight after curing before removal of leaves, bulb weight after curing after removal of leaves, bulb yield per plot (kg), number of bulbs per (kg]. Collected data was subjected to analysis of variance technique to analyze the results. The results showed that in nursery, the fertilizer Germinator, P-44 and Farm Yard Manure showed the best results and second transplanting (9 week old seedling) perform best in field.
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