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Chauhan, B.S.

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Chauhan
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B.S.
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Chauhan, B.S.
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2013 - 20143
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Author: Kamboj, B.R. × AGROVOC: RICE ×

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Now showing 1 - 3 of 3
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    Guidelines for dry seeded aman rice (DSR) in Bangladesh
    (IRRI, 2014) Gathala, M.K.; Sudhir-Yadav; Mazid, M.A.; Humphreys, E.; Ahmed, S.; Krupnik, T.J.; Rashid, M.H.; Chauhan, B.S.; Kumar, V.; Russell, T.; Saleque, M.A.; Kamboj, B.R.; Jat, M.L.; Malik, R.; Tiwari, T.P.; Mondal, M.; Rahmand, M.; Saha, A.; Hossain, K.; Saiful Islam; Mcdonald, A.
    Dry seeded rice (DSR) is becoming an attractive option for farmers as it has a much lower labor requirement than manually transplanted rice. Labor for transplanting rice has become scarce and costly because laborers are shifting from agriculture to industry, public works and services, and migrating abroad. DSR can be readily adopted by small farmers as well as large farmers, provided that the required machinery is locally available (e.g., through custom hire from agricultural service providers). Best practice involves using a 2- or 4-wheel tractor-drawn drill to seed in rows into nontilled or dry tilled soil, as for wheat. Because the soil is not puddled, DSR also has a lower water requirement for crop establishment, and may require less frequent irrigation than puddled transplanted rice grown with alternate wetting and drying water management during dry spells. Where arsenic contaminated groundwater is used, less irrigation means less arsenic brought to the soil surface. Furthermore, accumulation of arsenic in the grain and straw is much less if the soil is allowed to dry between irrigations to let air (oxygen) into the soil (“aerobic” conditions) than in continuously flooded rice.
    Publication
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    Mechanized Transplanting of Rice (Oryza sativa L.) in Nonpuddled and No-Till Conditions in the Rice-Wheat Cropping System in Haryana, India
    (Scientific Research Publishing, 2013) Kamboj, B.R.; Yadav, D.B.; Yadav, A.K.; Goel, N.K.; Gill, G.K.; Malik, R.; Chauhan, B.S.
    The common practice of establishing rice in the rice-wheat system in India is manual transplanting of seedlings in the puddled soil. Besides being costly, cumbersome, and time consuming, puddling results in degradation of soil and the formation of a hard pan, which impedes root growth of subsequent upland crops. In addition, decreased availability and increasing cost of labor have increased the cost of rice cultivation through conventional methods. Because of these concerns, there is a need for mechanized transplanting of rice which is less labor-intensive and can ensure optimum plant population under nonpuddled and/or no-till conditions. A large number of on-farm trials were conducted at farmers’ fields in Haryana, India, from 2006 to 2010 to evaluate the performance of the mechanical transplanted rice (MTR) under nonpuddled and no-till situations as compared to conventional puddled transplant rice (CPTR). Compared with CPTR, nonpuddled MTR produced 3%-11% higher grain yield in different years. Rice cultivars, viz. HKR47, HKR127, PR113, PR114, PB1, PB1121, CSR30, and Arize6129, performed consistently better under nonpuddled MTR as compared to CPTR. Performance of different cultivars (PR113, PR114, HKR47, and Pusa 44) was also better under no-till MTR as compared to CPTR. The “basmati” cultivar CSR30 performed equally in no-till MTR and CPTR systems. The results of our study suggest that rice can be easily grown under nonpuddled and no-till conditions with yield advantages over the CPTR system. Even in the case of similar yield between CPTR and MTR systems, the MTR system will help in reducing labor requirement and ultimately, will increase overall profits to farmers.
    Publication
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    Guidelines for Dry Seeded Rice (DSR): in the Cauvery Delta Zone, Tamil Nadu, India / Sudhir Yadav and others
    (CSISA, 2014) Sudhir-Yadav; Ganeshamoorthy, R.; Humphreys, E.; Rajendran, R.; Ravi, V.; Mussgnug, F.; Kumar, V.; Chauhan, B.S.; Ramesh, T.; Kamboj, B.R.; Gathala, M.K.; Malik, R.; Jat, M.L.; Mcdonald, A.
    Dry seeded rice (DSR) is becoming an attractive option for farmers in the Cauvery Delta Zone (CDZ) due to the elimination of the labor requirement for nursery preparation and maintenance, pulling out and transport of seedlings, and transplanting. Because the soil is not puddled, DSR also has a lower water requirement for crop establishment. Furthermore, the total crop cycle is shorter by 10−15 days because of the absence of transplanting shock. These features of DSR are of major importance for the Cauvery Delta (see below) because of the increasing scarcity of water for irrigation in the area. DSR can be readily adopted by small farmers as well as large farmers, provided that the required machinery is locally available (e.g., through custom hire). Best practice involves using a 2- or 4-wheel tractordrawn drill to seed in rows in dry or slightly moist soil.
    Publication