Abstract
The System of Rice Intensification (SRI) developed in Madagascar in 1980s is a revolutionary new idea for paddycultivation to increase yields with reduced external resources. Basic idea of SRI originally proposed (Basic SRI) is to applycombination of (a) transplanting of young seedlings with wider spacing and (b) intermittent irrigation during vegetativegrowth period Further, application of organic fertilizers without use chemicals has practiced as "Organic SRI" as an idealapproach to improve soil and to produce high quality rice. Over the past fIVe years, a Japan-funded irrigation project inEastern Indonesia executing by the Directorate General of Water Resources, the Ministry of Public Works has introduced SRIand assessed it's potential to reduce demandfor irrigation water while rewardingfarmers with higher production and incomes.This paper reports on on-farm comparative evaluations conducted over 9 seasons between 2002 and 2006 across 8 provincesunder DISIMP. It summarizes the results of 12,133 comparison trials that covered a total area of 9,429 hectares. Averageyield increase was 78% (3.3 tlha) with reductions of 40% in water use, 50% in fertilizer applications, and 20% in the costs ofproduction. As a conclusion, SRI practices can achieve significantly higher output of rice with a reduction in inputs, enhancingsimultaneously the productivity of the resources (land, labor, water and capital) used in irrigated rice production. Theeconomic attractiveness of SRI methods is very great, giving farmers strong incentive to accept water-saving as new norm forirrigated rice production.
Highlights
The first evaluations of SRI (System of Rice Intensification) in Indonesia were begun in the 1999 dry season by the Agency for Agricultural Research and Development (AARD) at its rice research center in Sukamandi, West Java
The main lessons learned from three years of experience with SRI cultivation in DlSIMP schemes in eastern Indonesia are as follow:
The labor burden is increased with SRI, at least initially
Summary
The first evaluations of SRI (System of Rice Intensification) in Indonesia were begun in the 1999 dry season by the Agency for Agricultural Research and Development (AARD) at its rice research center in Sukamandi, West Java. In addition to farmer efforts and field trials and research from the government and NGO side, the uptake of SRI will benefit from publicity campaigns by poster, lectures, and other means of communication, at the field level, but from all national, regional and local governments involved with paddy rice cultivation, creating a widespread awareness of the opportunities presented by these new understandings of optimizing rice production
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