Abstract: The suitable density of high density and high quality cultivation of tomato in short season from February to May was selected by analyzing the change of tomato yield and quality under different densities, which provided a new selection of production mode for the substitute products of the ending of strawberry production of the Changping district in Beijing. The results showed that when the density was 8 000 plants per 667 m2, 'Kaide6361' had the highest yield (6 390.5 kg) and sugar content (52.7 g/kg), which was more than twice as much as the standard value (15~25 g/kg), and the ratio of sugar to acid reached 14.01, this density was more suitable for production of fresh tomato. When the density was 10 000 plants per 667 m2, the lycopene of tomato was the highest, uping to 127.735 μg/g and the weight of single fruit was 151.0 g, the yield per 667 m2 was significantly higher than the control treatment, and this density was suitable for pallet packing and saling as functional product. |