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利用同位素示踪技术研究了水稻不同品种混植栽培的群体光合作用和根系活力。试验表明,混植栽培与常规稻单植相比,水稻生育后期群体光合速率明显提高,且能保持较强的根系代谢水平。这在一定程度上说明了水稻品种混植栽培的增产原因。
Isotopic tracer techniques were used to study the photosynthesis and root activity of different rice cultivars. The results showed that compared with conventional rice monoculture, the photosynthesis rate of rice in the late growth stage was significantly increased, and the root metabolism level was maintained. This explains to some extent the reasons for the increased yield of rice varieties mixed cultivation.