The effectiveness of the use of organic fertilizers in the link of crop rotation on light gray forest soil of the south of the Volga-Vyatka region

Abstract

Relevance. The issues of reproduction of fertility of light gray forest soils of the forest-steppe zone and utilization of poultry industry waste as organic fertilizers are interrelated and are very relevant. Methods. The experiments studied the effect of one-time application of various doses (15, 30, 50 t/ha) of chicken manure, chicken manure compost and local organic fertilizers (sapropel and peat) on crop yields, and the aftereffect of fertilizers on the main indicators of soil fertility — amount of humus, nitrate nitrogen, phosphorus and potassium. The variants of the experiments were investigated sixfold. The Federal State Center of Agrochemical Service "Chuvashsky" was involved in laboratory analyses of soils and crop production. Mеthods of analysis of soil samples and crop production are generally accepted in agrochemical science.Results. Organic fertilizers for three years of research were introduced into the soil only once at the beginning of the experiment in doses of 15, 30 and 50 t/ha, and their effect on the yield and quality of crop production (potato tubers, spring wheat grains and peas) in 2020–2022 was positive. The agrochemical properties of the arable soil layer in the variants with the use of organic fertilizers have significantly improved. The nitrate content in the products in variants with doses of chicken manure and compost of 50 t/ha or more approached the critical level. Local fertilizers (sapropel and peat) at a dose of 30 t/ha, chicken manure and compost at a dose of 15 t/ha are good organic fertilizers with a long aftereffect.

Influence of protective forest belts on snow accumulation in agricultural landscapes

“…The main mass of snow was transported in the surface air layer (up to 50 cm), where shrubs were located, which had about 50-60% openness in a leafless form and promoted sufficient snow accumulation. According to Vasiliev (2003) at 40-50% openness and deviation of the angle of approach of the wind flow to the forest belt from perpendicular, the range of influence decreases to 10%, and at 13-31% openness to 55-20%. For a complex assessment of the forest belt effect on the character of snow distribution and accumulation, we used the formula of the total range of wind breakage effect by Garshinev (2002).…”

Functionality of Zonal Agroforestry Systems on Agricultural Land of Dry Territories

“…The large role of agroforestry in the fight against wind erosion on arable land has been demonstrated [14] and reinforced in recent years [15][16][17]. The use of wind protection by forest plantations (PFPs) of various designs in the fight against deflation has been shown in scientific works on the south of the Russian Plain [14,18], Ukraine [19]), and Bulgaria [20].…”