ABSTRACT

There is a close relationship among agriculture, economics, energy and the environment. A comparison was made between conventional and the system of rice intensification (SRI) methods of rice cultivation by conducting two experiments. One field experiment was conducted from 2013 to 2017 at 25 locations across India under the All India Coordinated Rice Improvement Project and another experiment was conducted in 2017 using surveys by collecting data from 262 randomly selected SRI farmers using a personal interview method in the Telangana state of India. The 5-year experimental data revealed that the SRI method of cultivation produced higher rice grain yield (up to 55%) compared to the conventional transplanting method. Survey data revealed that total costs of rice production reduced by 22.71% under SRI. Break even output under SRI was reduced by 58.1%. Adoption of SRI saved total energy inputs by 4350 MJ/ha. The energy productivities were 0.16 kg/MJ and 0.21 kg/MJ for conventional and SRI methods, respectively. Also, SRI resulted the lowest greenhouse gas emissions of 0.280 kg CO₂e/kg rice grain. Therefore, for ensuring higher productivity, net returns, energy efficiency and sustainable rice production it is recommended to adopt an environmentally friendly SRI method of crop establishment in the Telangana region of India.

抽象的

农业，经济，能源和环境之间有着密切的关系。通过进行两个实验，比较了传统的水稻栽培技术和水稻强化栽培系统。在2013年至2017年期间，根据“全印度协调稻米改良项目”在印度的25个地点进行了一项田间试验，并在2017年进行了一项调查，该调查采用了个人访谈方法，通过调查收集了来自262名随机选择的SRI农民的数据，该调查采用的是印度特兰甘纳州。印度。5年的实验数据表明，与传统的移栽方法相比，SRI栽培方法产生的水稻籽粒产量更高（高达55％）。调查数据显示，根据SRI，大米生产的总成本降低了22.71％。SRI下的收支平衡输出减少了58。1％。采用SRI可以节省总能源输入4350 MJ / ha。对于常规方法和SRI方法，能量生产率分别为0.16kg / MJ和0.21kg / MJ。此外，SRI产生的温室气体排放量最低，为0.280千克二氧化碳₂ e / kg米粒。因此，为了确保更高的生产率，净收益，能源效率和可持续的水稻生产，建议在印度的Telangana地区采用一种环保的SRI作物种植方法。