In-situ green-manuring for enhanced rice (Oryza sativa) productivity under north eastern hill region

VENUGOPAL REDDY; S.S. RATHORE; SUBHASH BABU*; KAPILA SHEKHAWAT; V.K. SINGH

doi:10.59797/ija.v66i3.2862

Authors

VENUGOPAL REDDY
S.S. RATHORE
SUBHASH BABU*
KAPILA SHEKHAWAT
V.K. SINGH

DOI:

https://doi.org/10.59797/ija.v66i3.2862

Keywords:

Buckwheat, Direct-seeded, Economics, Green manuring, Upland rice, Yield

Abstract

An experiment on was conducted during the rainy (kharif) season of 2019 at Barapani, Meghalaya, to study the comparative effect of buckwheat (Fagopyrum esculentum Moench) and ricebean [Vigna umbellate (Thunb.) Ohwi & H. Ohasi] green manures on growth and productivity of rice (Oryza sativa L.), to assess the economic feasibility of various nutrient-management options in rice-production system. The results revealed that, plant height growth, dry-matter accumulation, tillers, grain yield and economics were improved under green-manuring buckwheat and rice bean along with RDF combination. In situ green manuring of and nutrient management (RDF 100, 75 and 50%) significantly (P?0.05) influenced the grain yield (t/ha) of direct-seeded, upland rice. Maximum grain yield (4.55 t/ha) was obtained with buckwheat green-manuring + 100% recommended dose of fertilizer. Soil-microbial activity in terms of enhanced enzymatic activity of acid phosphatase was observed under green-manuring with RDF (1005). Hence buckwheat proved to be a superior green manure along with 100 recommended doses of fertil- izers.

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