National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Nigella (Nigella sativa L.) is a spice crop that belongs to Ranunculaceae family. The seeds or grains resembling onion seed, are used both as spice and medicine. In Malda district of WB, this crop do not cultivated earlier time but recent 2 to 3 Years it is introduced as a new seed spices which opens new avenues for the farmers by not only the choice of crops but also improve their revenue from the land. The present investigation was carried out during rabi 2017 and 2018 in the Malda district on, optimum N and P application levels to get high yield and quality in nigella four levels of nitrogen (0, 20, 40 and 60 kg nitrogen (N) ha-1) and phosphorus (0, 15, 30 and 45 kg phosphorus (P)/ha. The study on application of different levels of nitrogen and phosphorus revealed that all the traits were influenced by N and P application. There was interaction effect in the traits like plant height (60, 90 DAS and at harvest), capsule yield, husk yield. N and P application levels improved the plant height, number of leaves per plant and number of branches per plant at different stages of growth. Similar response was observed in fresh and dry matter accumulation. Minimum total chlorophyll content, The yield contributing characters like capsule weight at harvest, capsule length and diameter, number of capsules, number of seeds per capsule, test weight, capsule yield per plant and grain yield per plant increased with level of application of N and generally maximum values were observed in highest N application. Similar response was observed with P application. Seed yield and stalk yield were maximum at highest N application. Seed yield was maximum with the application of phosphorus 45 and 30 kg /ha. The uptake of N, P and K increased with the increase of N and P applications. Lower available nitrogen and potassium, and higher available phosphorus status was observed after harvest than initial soil status. The highest Benefit Cost Ratio (BCR) was recorded with the crop sown during the October. The application of 60 /kg N ha in two splits as basal and at 35 DAS with 30.
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