[01] Jianguo Liu, School of Environmental & Safety Engineering, Changzhou University, Changzhou, China. [02] Yuankang Liu, School of Environmental & Safety Engineering, Changzhou University, Changzhou, China. [03] Kaiqiang Chu, School of Environmental & Safety Engineering, Changzhou University, Changzhou, China. [04] Xuanhua Zhang, School of Environmental & Safety Engineering, Changzhou University, Changzhou, China.

Crop straw is a kind of valuable bio-resource. How to use the resource, other than treating it as a waste, is very important for China and all over the world. Straw biological reactor (SBR) is a technology for returning crop straw into agricultural soils. In this study, effects of SBR with rice straw on the growth environment, fruit yield and economic benefit of cherry tomato were studied in the sheds covered with plastic film. The results showed that SBR treatment increased total N and organic matter contents of the soil by 77.02% and 62.89% respectively, and reduced bulk density and salinity of the soil by 2.63%-24.66% and 34.38% respectively. The atmospheric CO₂ concentrations in the sheds were elevated by 8.05%-279.25%, with an average value of 158.46%, by SBR treatment. It also raised atmospheric temperatures of the shed by 0.2-3.4°C, with an average value of 1.6°C, and increased the soil temperatures by 0.8-6.2°C, with an average value of 3.0°C. As a result, the fruit yield and profit of cherry tomato were raised by 26.22% and 43.71% respectively by the SBR with rice straw. The results indicate that SBR with rice straw can improve the growth environment of cherry tomato, and boost the fruit output and economic benefit effectively.

Straw Biological Reactor, Crop Straw, Cherry Tomato, Output, Economic Benefit

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