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Dr. Rajendra Prasad Central Agricultural University, Pusa

In the imperial Gazetteer of India 1878, Pusa was recorded as a government estate of about 1350 acres in Darbhanba. It was acquired by East India Company for running a stud farm to supply better breed of horses mainly for the army. Frequent incidence of glanders disease (swelling of glands), mostly affecting the valuable imported bloodstock made the civil veterinary department to shift the entire stock out of Pusa. A British tobacco concern Beg Sutherland & co. got the estate on lease but it also left in 1897 abandoning the government estate of Pusa. Lord Mayo, The Viceroy and Governor General, had been repeatedly trying to get through his proposal for setting up a directorate general of Agriculture that would take care of the soil and its productivity, formulate newer techniques of cultivation, improve the quality of seeds and livestock and also arrange for imparting agricultural education. The government of India had invited a British expert. Dr. J. A. Voelcker who had submitted as report on the development of Indian agriculture. As a follow-up action, three experts in different fields were appointed for the first time during 1885 to 1895 namely, agricultural chemist (Dr. J. W. Leafer), cryptogamic botanist (Dr. R. A. Butler) and entomologist (Dr. H. Maxwell Lefroy) with headquarters at Dehradun (U.P.) in the forest Research Institute complex. Surprisingly, until now Pusa, which was destined to become the centre of agricultural revolution in the country, was lying as before an abandoned government estate. In 1898. Lord Curzon took over as the viceroy. A widely traveled person and an administrator, he salvaged out the earlier proposal and got London’s approval for the appointment of the inspector General of Agriculture to which the first incumbent Mr. J. Mollison (Dy. Director of Agriculture, Bombay) joined in 1901 with headquarters at Nagpur The then government of Bengal had mooted in 1902 a proposal to the centre for setting up a model cattle farm for improving the dilapidated condition of the livestock at Pusa estate where plenty of land, water and feed would be available, and with Mr. Mollison’s support this was accepted in principle. Around Pusa, there were many British planters and also an indigo research centre Dalsing Sarai (near Pusa). Mr. Mollison’s visits to this mini British kingdom and his strong recommendations. In favour of Pusa as the most ideal place for the Bengal government project obviously caught the attention for the viceroy.

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  • ThesisItemOpen Access
    Effect of nano- nitrogenous fertilizer on growth, yield and nitrogen use efficiency of transplanted rice
    (DRPCAU, PUSA, 2022) B R, Rakesh; Pramanick, Biswajit
    The research-work was conducted in the rainy season of 2021 (Kharif-2021), at Research-Farm RPCAU-Pusa, Bihar to study the “Effect of nano- nitrogenous fertilizer on growth, yield and nitrogen use efficiency of transplanted rice”. Experimental-soil was sandy-loam in nature having low in SOC (0.39%), available N (210 kg ha-1) and K (109 kg ha-1), medium available-P (12.0 kg ha-1) with alkaline soil pH of 8.81. The research work was with the following objectives, viz., to assess the effect of nano-N fertilizer on growth and yield of rice; to evaluate the effect of nano -N fertilizer on nitrogen use efficiency; & to evaluate the economics of different treatments. The study consisted of 7 various nutrient management options for rice (variety, Rajendra Bhagwati) with or without nano-N+various levels of recommended N (RDN). Treatments details as follows, T1: 100% RDN; T2: 50% RDN+2 nano-N sprays; T3: 75% RDN+2 nano-N sprays; T4: 100% RDN+2 nano-N sprays; T5: 125% RDN+2 nano-N sprays; T6: 150% RDN+2 nano-N sprays; T7: Control (no N-application). Statistical design was randomised complete block design (RCBD) with three replications. For all the treatments, recommended P and K fertilizers were given. From the one-year long study, it was observed that the application of 125% RDN+2 nano-N sprays (T5) resulted in the best attainments of growth viz. plant height (cm), dry-matter accumulation (g m-2), crop-growth rate (g m-2 d-1), tiller numbers m-2; yield attributing characters and yield of rice and this treatment was found at-par with application of 150% RDN+2 nano-N sprays (T6) and 100% RDN+2 nano-N sprays (T4). Interestingly, it was also observed that the application of 75% RDN+2 sprays of nano-N (T3) and application of 100% RDN (T1) was found at-par concerning almost all the growth and attributes and yield of the crops. It was observed that the application nano-N resulted in higher growth and yield when applied with RDN. Comparing T1 with T4 where addition 2-sprays of nano-N was administered, resulted in about 7.3% increment in tiller numbers m-2. T4 also resulted in about 10% and 5% more grain and straw yield of rice, respectively comparing those under T1. Concerning nutrient content in plants, it was observed that the application of varied nano-N significantly influenced the grain and straw N content (%) of rice. However, the P and K content in plants were not varied widely. T5 again showed the maximum values of N-content (%) in rice being at par with T4 and T6. N, P and K-uptake by the plants were found to be significantly varied with the different treatments. T5 exhibited the maximum attainment of N, P and K uptake by the plants. Concerning nitrogen use-efficiency (NUE), it was observed that application of 75% RDN+2 nano-N (T3) sprays resulted in the maximum value of NUE (20 kg kg-1) being closely followed by T4 (19.6 kg kg-1). It was also found that the application of RDN beyond 100% reduced the NUE as higher amount of N-application did not found to increase the yield at the same-tune. From the economic point of view, it was observed that the application of 125% RDN+2 nano-N sprays (T5) resulted in the maximum values of gross returns (Rs. 97981 ha-1), net returns (Rs. 52133 ha-1) and B:C ratio (1.14) and this treatment was found at-par with T4 and T6. Application nano-N over 100% RDN (T4) showed Rs. 7032 ha-1 more net returns comparing applying only 100% RDN without nano-N (T1). From this one-year study, it can be concluded that the application of 125% recommended N through urea+2 sprayings of nano-N at active tillering and panicle initiation stages resulted in the maximum growth, yield and economics of the rice cultivation. However, the maximum nitrogen use-efficiency was observed with 75% recommended N through urea+2 sprayings of nano-N.