In Kazakhstan, melon growing is cultivated using chemical fertilizers. Organic production is not practiced where there being no research. Our country, possessing a great high-quality variety, can be the focus of world community attention as a producer and supplier of ecological melon. Besides economic interests, changeover from traditional methods of cultivation to biological one is of great importance in ecological aspect. Unregulated and too high agrochemicals application causes a number of negative consequences, upwards from soil pollution with severe salts to poisoning caused using low-quality products. The most popular and regulated elements of biological melon cultivation in production include organic fertilizers instead of chemical ones. Therefore, our research is aimed to study bioorganic fertilizers on melon culture under Southeastern Kazakhstan. Scientific experiments were held at the experimental sites of the «Fruit and Vegetable Research Institute» LLP. We experimented using classical research methods generally adopted in melon cultivation. The findings showed that bioorganic fertilizers improve the growth parameters and quality of melon culture, and increase fruit productivity. The yield growth on the studied options for control ranged from 31.23% to 41.71%, depending on the nutritional conditions.

Melon cultivation is an important feature of agriculture in Kazakhstan. According to Kazakh Academy of Nutrition, the rate of melon field consumption per 1 inhabitant per year is 26 kg.In 2019, the cucurbits in the country were cultivated on an area of 102.1 thousand hectares, the gross harvest amounted to 2382.1 thousand tons, i.e. 132.3 kg per inhabitant per year. These data show the high export potential of the melon industry in Kazakhstan.As we know, 95-97% of melons are consumed fresh. In this aspect, there is a need to produce natural, high-quality melons of particular relevance. The organic melon products can be grown in the climate of maximum biologization of agricultural technologies.In Kazakhstan, the production of organic melon products is at the beginning of development. The most open and regulated elements of biological melon cultivation in the production environment include the use of organic fertilizers and biological products instead of chemical ones. The data received in the process of scientific research showed that the use of organic and biological fertilizers helped to raise fresh plants and process acceleration of fruit ripening by an average of 3-5 days. The productivity of melon grew to 37.32% with biologized fertilizer systems. So, the quality of melon fruits has increased for the non-fertilized control. Рroviding the low cost and high payback of organic fertilizers, the positive influence on the productivity and ecological purity of the cultivated products, we can do a conclusion about the potential transition of the melon industry of the country from traditional ways of cultivation to alternative ones.