Planting method for improving tomato growth and development and fruit quality based on combined application of iron, zinc and selenium

Abstract

The invention discloses a planting method for improving tomato growth and development and fruit quality based on combined application of iron, zinc and selenium. The planting method comprises the following steps: S1, a zinc fertilizer, a selenium fertilizer and soaked and sun-dried coco coir are uniformly mixed to serve as a matrix, and the matrix is placed in a nutrition bowl for later use; S2, after being soaked in warm water, subjected to germination accelerating and sprouted, tomato seeds are sown in a plug tray, and after seedlings grow to three leaves and one core, the seedlings are planted in a nutrition pot; and S3, after the tomatoes enter the flowering period, an EDTA-Fe aqueous solution with the concentration being 100 micro-mol.L<-1>and a ZnSO4.7H2O aqueous solution with the concentration being 50 micro-mol.L<-1> are sprayed to the tomato plants, the front faces and the back faces of all leaves are evenly sprayed, and spraying is conducted once a week. According to the method, the nutritional quality of tomato fruits can be obviously improved; and through analysis of main components of the tomato fruits, the result of the analysis shows that the operation of combined application of zinc, iron and selenium can remarkably promote the growth and development of the tomato fruits and the improvement of the nutritional quality, so that the nutritional value of tomatoes is effectively improved.

Description

technical field [0001] The invention relates to the field of tomato cultivation, in particular to a planting method for improving tomato growth and fruit quality based on combined application of iron, zinc and selenium. Background technique [0002] Tomato (Solanum lycopersicum L.) is one of the vegetable crops with the largest cultivated area at home and abroad, and it is also an important model crop for genetic improvement of the quality of solanaceous vegetables. Because of its sweet and sour taste, it is helpful for human digestion, and it is very rich in nutrients, especially rich in lycopene, which has anti-aging, anti-cancer, and cardiovascular disease prevention effects. One of the common fruits and vegetables. In addition, tomato is widely used in quality genetic improvement and physiological and biochemical research. Exogenous iron, zinc, and selenium promote the increase of trace elements in tomato fruits and improve the nutritional value of tomatoes. Food forti...

AI Technical Summary

Problems solved by technology

Most of the existing technologies focus on the treatment of single iron, zinc and selenium elements and the reduction of heavy metal cadmium accumulation in plants, while the effects of combined application of iron, zinc and selenium on tomato sucrose metabolism, amino acid components, volatile flavor substances and whether there are The synergistic regulation effect still needs further research

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