The Effect of Differentiated Nitrogen Fertilization using Satellite Navigation Systems on the Spring Wheat (Triticum aestivum L.) Crop Yield in the Conditions of Chernozem-Like Soils in the Northern Forest Steppe of the Tyumen Region of Russia

Abstract

Soil cultivation without layers turnover impeded the process of nitrate nitrogen accumulation compared with plowing. The traditional scheme of mineral fertilization applying the averaged standard did not create a heterogeneous level of nutrient supply in primary soil cultivation systems. These factors set them in unequal conditions by default in terms of nitrogen supply to crops. Solid mineral fertilization with the use of precision farming systems in subcompartments, taking into consideration nutrient concentration in soil and the estimated crop yield changes the function of nitrogen status formation. The aim was to study nitrogen status while applying an innovative approach to primary soil cultivation using satellite navigation systems. The experiments were carried out on meadow-chernozem, and nitrogen status was studied in plowing, differentiated, subsurface tillage, and soil cultivation without layers turnover. Nitrate nitrogen was defined by the ionometric method. Moderate supply was registered in plowing and differentiated tillage in the 0-20 cm layer with 10.1-11.8 mg/kg. During the tillering phase, N-NО3 supply amounted to 16.6-15.2 mg/kg which indicated a high supply of crop plants. On fields with subsurface tillage and no primary soil cultivation, a moderate supply of nitrate nitrogen was observed-10.1-10.8 mg/kg. Innovative technology including differentiated mineral fertilization decreased spatial variability of N-NO3 supply to 8.2-10.4 mg/kg before spring wheat (Triticum aestivum L.) seeding, during tillering phase its variability dropped to 15.3%, having the benefit of accumulation with resource-saving tillage: 11.9-12.7 mg/kg. Optimization of nitrogenous nutrition in the case of differentiated mineral fertilization with precision farming systems application in off-line mode helped achieve the maximum spring wheat yield-3.63-4.03 t/ha in soil cultivation without turning over layers.

Influence of Coal Mining Activities on Soil's Agrochemical and Biochemical Properties

“…The concentrations of total nitrogen (%), ammonium nitrogen (mg/kg), and nitrate nitrogen (mg/kg) were measured using the Kjeldahl technique (Hu et al, 2022;Lin et al, 2019;Oxukbayeva et al, 2023).…”

Development and Implementation of Effective Schemes for the Use of Mineral Fertilizers in the Forest-Steppe Zone of the North Kazakhstan Region

“…An important place in the intensive farming system is occupied by the use of modern varieties and the use of fertilizers. In this regard, the greatest interest is the study of the productivity of varieties of spring soft wheat of intensive and semi-intensive types at different levels of mineral nutrition (Oxukbayeva et al, 2023). To form a high yield, the sowing of an agricultural crop should be characterized by good development of all plants, resistance to lodging, and the density of the productive stem optimal for these environmental conditions and varieties.…”

Influence of Sowing Dates, Soil Fertility and Crop Rotation System on Increasing the Yield Level of Various Varieties of Spring Wheat (Triticum Aestivum L.)

“…The agrotechnological requirements can be updated provided that precision farming systems are used in the crop industry, which is a complex high-tech agricultural management system based on technologies of differentiated land use, considering the intra-field variability of soil fertility factors (Jägermeyr and Frieler, 2018) and using modern technology and software (geoinformation systems) support (Panesh and Tsalov, 2017;Bekezhanov et al, 2022) and remote sensing of the state of soils and crops (Oxukbayeva et al, 2023). Precision agriculture ensures the maintenance and improvement of soil fertility (Gulyanov and Chibilev, 2019), increasing sustainability and reducing material and energy costs of agricultural production (Polishchuk et al, 2021), obtaining high-quality products and reducing the burden on the environment (Gulyanov and Chibilev, 2019).…”