Agrobio-energy efficiency of rice emissions depending on the meliorative state of the draft irrigation system

The soil productivity of rice fields of the Kuban was studied and the agrobioenergetic efficiency of rice cultivation in crop rotation and permanent sowing was assessed depending on the meliorative state of the irrigation system. The highest yield of rice is achieved on high checks and higher at 12.4 c/ha than on low ones. Rice cultivation on high checks contributes to a greater accumulation of energy in the crop (115.29 vs. 95.46 GJ/ha on low checks), a higher net energy income (26.94 vs. 4.87 GJ/ha), and is the most energy-efficient (1.30 against 1.05 on low checks). The yield of rice on the permanent plot is less by 3.5-4.0 times, or by 42.2-54.6 c/ha compared to the fields of rice crop rotation. The immeasurable cultivation of rice is not energetically effective - the amount of energy stored in the crop is not comparable to the costs of anthropogenic energy (0.45).