STM Article Repository

Background and Aim: The effective use of desert sands and sandy soils occupying a huge area (900 million hectares) on the planet is becoming an important and urgent task. After all, this is very important in solving the problem of food security, which is associated with a rapid increase in the population of the world.

The main aim of the study is to create an effective agricultural technology that allows increasing soil fertility and crop yields, effectively using water and mineral fertilizers in the evaluation of sole and intercropping of cotton with legume crops (soybean and peanut) with varying level of plant population, planting pattern and rate of fertilization for their capacity to affected soil properties and crop residue addition. In field and laboratory experiments, the type of partner crop, planting method, seedling thickness, fertilization and irrigation regime were studied.

Information of Experiment: Therefore, in the last 3 years, extensive research has been carried out on sandy soils of the desert region of the Yozyovon District of Fergana region (Uzbekistan), which are extremely inconvenient for agriculture. In the experiment, the intercropping of cotton with legumes (soybeans and peanuts) allowed crops, especially their root system, to actively develop, accumulate more (1.5-2.7 times) plant residues in the soil, ensure a deficit-free humus balance and a partial increase (0.003 - 0.004%), a significant increase in total nitrogen and total phosphorus (0.008-0.016 and 0.007-0.012%), an improvement in nitrate and phosphorus regimes from very low to low levels.

Conclusion: According to the results of the study, it was concluded that in sandy soils it is possible to increase soil fertility by co-planting cotton with legume cereals (soybeans and peanuts), improve the amount and migration of nitrate nitrogen, as well as the transition of phosphorus to an easily digestible (P2O5) state, effectively use soil fertility and applied mineral fertilizers, reduce the washing of nutrients.