分蘖洋葱伴生减磷对番茄生长发育及光合指标的影响

Effect of Tillering Onion Associated with Reduced Phosphorus on Tomato Growth Development and Photosynthetic Indexes

以番茄品种粉和平和分蘖洋葱品种绥化为试材,研究分蘖洋葱伴生减磷处理对番茄生长、光合指标及产量的影响。结果表明:分蘖洋葱伴生减磷(常规施肥量的50%)处理的番茄植株茎粗在定植后30 d显著高于对照(番茄单作,常规施肥量),全株干、鲜质量在拉秧期均显著高于对照,叶片光合速率、气孔导度、蒸腾速率在开花期和盛果期均明显高于对照,单株产量显著高于对照,说明分蘖洋葱伴生番茄可以减少磷肥的施用量。

Taking tomato variety‘Fenheping’and tillering onion variety‘Suihua’as experimental material,this paper studied on the effects of tillering onion associated with reduced phosphorus treatment on tomato growth,photosynthetic indexes and yield.The results indicated that the stem diameter in the treatment of tomato inter-cropped with onion under reduced phosphorus condition(50%of conventional phosphorus fertilization)30 days after planting was significantly thicker than that of the control(tomato monoculture and conventional phosphorus fertilization).Plant dry and fresh weights were also significantly higher than that of the control at the seedling pulling stage.In addition,the photosynthetic rate,stomatal conductivity and transpiration rate of leaves were obviousely higher than that of control during flowering period and fruiting period.Moreover,tomato single plant yield was significantly higher than that of the control,indicating that tillering onion associated with tomato cultivation could reduce the application rate of phosphate fertilizer.