The use of environmentally safe products of natural origin is a global trend today. A particular point of interest is the use of humic fertilizers. This is due to the growing awareness of the positive impact of humic substances on plant growth and development as well as on the quality of agricultural products and soil fertility. Humates are physiologically active substances. As a result, they regulate and intensify metabolic processes in plants and soil, and contribute to the bioavailability of nutrients to plants. EldORost is a new-generation humic product that contains humic substances with a high humification degree. In addition to humates, this product contains a complex of amino acids, macro-, and microelements in a bioavailable form for plants. The product is eco-friendly and completely soluble in water, which is a substantial advantage for drip irrigation systems. It can be used for all types of agricultural crops on a wide diversity of soils and climatic zones. It displays the properties of plant hormones while its optimum concentration is as low as 0.0001% (wt). The efficiency of this novel humic product was tested in laboratory and field tests conducted on potatoes and vegetable crops (tomatoes, cucumbers, cabbage, carrots, onions, beets). The obtained results showed high efficiency displayed in the significantly improved sowing quality of vegetable seeds, nominally increased the germination degree and seed germination energy, intensively stimulated the side root development in plants, accelerated the growth of biomass, increased the fruiting period, and reduced maturation on the yield of potatoes and vegetable crops. The obtained data allowed us to characterize this novel humic product from the perspective of an eco-friendly fertilizer and growth promoter.

The purpose of the research was to study an influence of biofertilizers and new types of biological products for the yield and quality of vegetables in the SouthEast of Kazakhstan. In Kazakhstan, organic farming began to develop after the adoption of the Act "On Organic farming" in 2015. The development of "green" technologies is very important for the production of organic vegetable products in the country. The goal is the scientific provision of organic vegetable farming in Kazakhstan. Methods of research are classical, generally accepted in vegetable growing, agrichemistry and soil science. The studies on "green" agritechnologies in the vegetable farming of Kazakhstan are conducted for the first time, which determines their relevance and scientific novelty. The aim of the research was to study an influence of local organic fertilizers and new types of biofertilizers while growing the most popular vegetable crops (cabbage, cucumber, tomato) and replace chemical fertilizers by them in the condition of the SouthEast of Kazakhstan. Also, development of an alternative biological system for the fertilization of vegetable crops by using local organic fertilizers and biopreparations. It was experimented that all types of organic fertilizers and biopreparations ensure a sufficiently large yield of vegetables. It is noted that some organic fertilizers are more effective than mineral fertilizers. The bioorganic fertilizers positively influenced the quality of vegetables, so that the content of dry substances, sugars and vitamins increased in the production. The conclusion was made on the possibility of using local organic fertilizers and new biopreparations available to farmers of the country for growing organic vegetables. Depending on the types of organic fertilizers and biopreparations, the yield of cabbage increased by 15.2-47.2%, cucumber by 17.4-88.7% and tomato by 14.4-47.1%. Moreover, an improvement of the quality indicators of vegetables also showed in the crops.

The results of the ecological variety testing of melon and watermelon hybrids are presented in the paper. In the period from 2018 to 2020, 10 foreign varieties and hybrids of melon and watermelon were evaluated according to economic and valuable characteristics in the adaptation nursery in the climatic conditions of southeastern Kazakhstan. According to the set of qualities and indicators, 4 melon and watermelon varieties were distinguished and suggested for production.

The tomato is an important fruit, both fresh and processed, for human nutrition worldwide, and plays a significant role in agriculture. Especially in the intensive agricultural system where chemical fertilizers are used, little is known the impact of chemical NPK fertilizer applications on the yield of tomato under chestnut soil conditions. The objective of this study was to investigate the effects of four types of NPK fertilizer applications (N120P90K60, N150P120K90, N180P150K120, N210P180K150) on the yield and yield parameters of 5 different tomato varieties (Ogonyok 777, Barin, Hybrid Shuruk, Hybrid SC-2121 and Hybrid Falcon) under chestnut soil conditions in in the Southeast of Kazakhstan. According to field experiment results, there were significant differences among the treatments in relation to yield and yield parameters (plant height, number of stems, number of leaves, and number of fetus after planting) of tomato varieties. In foothill zone of the southeast of Kazakhstan, Hybrid Shuruk and Hybrid SC-2121 tomato varieties significantly yielded higher than the other three varieties tested at the same time under chestnut soil conditions. And also, it was determined that the best outputs tended to be obtained with N210P180K150 fertilizer dose.