Bio-conversion of rice straw waste in to high quality organic fertilizer

Pasumarthi, R and Sawargaonkar, G and Khopde, R and Choudhary, P and Dixit, S (2021) Bio-conversion of rice straw waste in to high quality organic fertilizer. In: 5th International Agronomy Congress, November 23-27, 2021, India.

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Abstract

In India, 353 Mt crop stubble annually generated from rice and wheat crops respectively. About 84 Mt (23.86%) of the stubble is being burnt on-field by the farmers every year (Abdurrahman et al., 2020). Use of these unused crop residues (stubbles) for generating compost, incorporation into soil, biochar etc. will result in benefit to farmers by enhanced soil health and to environment by reduced pollution (Jain et al., 2014). Thus, the paddy straw was used to decompose it with the help of aerobic composting and the results are shared in this paper. It is evident from the above table that rice straw good source of nutrient. About 40% of the N, 30-35% of the P, 80-85% of the K and 40-45% of the S absorbed by rice remain in the vegetative parts at maturity. Therefore, one ton of rice straw contains 5-8 Kg N, 0.7-1.2 Kg P, 12-17 Kg K, 0.5-1 Kg S, 3-4 Kg Ca, 1-3 Kg Mg and 40-70 Kg Si (Dobermann and Wilt 2000).with Madhyam culture @ 200 kg cow dung for 1000 kg biomass. The compost heaps have been irrigated on alternative days and turning over has been conducted for every 10 days (Chander et al., 2018). The compost samples (KH1 to 18) were analyzed for organic carbon by Walkley black method and other parameters like N, P, K have been analyzed by ICPMS.

Item Type:	Conference or Workshop Item (Paper)
Divisions:	Global Research Program - Resilient Farm and Food Systems
CRP:	UNSPECIFIED
Uncontrolled Keywords:	Fertilizer, Rice
Subjects:	Others > Biotechnology Others > Soil Fertility Others > Rice Others > Fertilizers Others > Food and Nutrition
Depositing User:	Mr Arun S
Date Deposited:	20 Mar 2022 05:14
Last Modified:	20 Mar 2022 05:16
URI:	http://oar.icrisat.org/id/eprint/11972
Acknowledgement:	UNSPECIFIED
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