Hargilas*
Agriculture Research Station (MPUAT), Banswara, Postal-327001, Rajasthan, India
Email: hargilasm73@gmail.com
Received-18.01.2016, Revised-27.01.2016
Abstract: Site-specific nutrient management (SSNM) in a new approach that provides the proper quantity and timely supply of nutrients to the crop plants according its requirement in the existing soil and climate. With this background, a field experiment was conducted on a fixed site at Agriculture Research Station (MPUAT), Banswara, Rajasthan, during two consecutive kharif seasons of 2008 and 2009 to evaluate the plant based SSNM strategy for rice crop. The experiment consisted of seven treatments with the application of different category of nutrients, including control and State Fertilizer Recommendation (SFR). SSNM treatment (T4) gave a maximum grain yield (74.00q ha-1) which was recorded significantly 10, 12, 30, 55 and 58% higher compared to the Improved fertilizer recommendation (T3), State fertilizers recommendation (T2), SSNM-P (T6), SSNM-N (T5), and absolute control (T1), respectively. The grain yield increased in T4 could be recorded the maximum tillers (352 m-2), Panicles (340 m-2), grains (150.30 panicle-1). The maximum B: C ratio (3.54) was also recorded with SSNM (T4). The yield lower in N and P omission from SSNM treatments indicated that there is large response to added N but low response to added P due to variation in indigenous soil nutrient supply. Hence, high variability to applied N, P, K suggests the necessity of SSNM to improve the productivity of rice crop.
Keywords: Rice, SSNM, Grains yield, Nutrient
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