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 |
An experiment was conducted at experimental research farm of College of Agriculture, Central Agricultural University, Imphal, Iroisemba to investigate the influence of phosphorus and potassium on yield attributes and yields of black aromatic rice (Chak-hao) during the kharif season 2017. The experiment was laid out under factorial randomized block design with three replication consisting of two factors via, phosphorus levels (0, 20, 40 and 60 kg P2O5/ha) and potassium levels (0, 30 and 60 kg K2O/ha). Maximum plant height, number of effective tillers per hill, panicle length and dry matter production were recorded with 60 kg each of P2O5 and K2O/ha which remain at par with 40 kg P2O5/ha and 30 kg K2O/ha respectively. The result obtained during the investigation concluded that effective tillers/hill (7.69), panicle length (23.44 cm), filled grain/panicle (77.75) and test weight (27.81g) were maximum with the application of 60 kg P2O5/ha but statistically identical with 40 kg P2O5/ha. Among the different levels of potassium application of 60 kg K2O/ha recorded maximum effective tillers (7.15), panicle length (23.07 cm), filled grans/panicle (74.59) and test weight (27.74 g).Similar it was recorded for grain (1971.56 kg/ha and 1879.67 kg/ha) and straw yield (3705.56 kg/ha and 3615 kg/ha) with 60 kg P2O5/ha and 60 kg K2O/ha respectively which was statistically at par with 40 kg P2O5/ha and 30 kg K2O/ha respectively. This can be concluded that application of 40 kg P2O5/ha and 30 kg K2O/ha improved plant growth and yield of black aromatic rice.
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