RESEARCH ON THE IMPACT OF ORGANIC WASTE ON OILSEED RADISH YIELD ON LOW-PRODUCTIVE AND DEGRADED LANDS USING INFORMATION-LOGIC ANALYSIS

Abstract

Background. Currently, almost 2 billion hectares of land are subject to degradation. To increase the fertility of low-productive and degraded lands, to increase the yield of agricultural crops is possible by applying organic waste, the volume of which increases annually in the world. The share of influence of the experiment variants on the yield of oilseed radish was 31,8 %, according to the information-logical analysis.

Objective. The purpose of the study was to assess the degree of influence of organic waste application rates on the yield of oilseed radish using information-logical model.

Materials and Methods. A systematic approach, information-logical analysis were used in the study. Statistical processing of data was carried out in Excel. The field experiment was laid and conducted according to the methodology outlined in the work of B. A. Dospekhov. We conducted research on the use of poultry manure in Altai Krai as a fertilizer since 2014, and sewage sludge since 2019.

Studies on improving the fertility of low-productive and degraded soils using organic fertilizers were conducted in Kalmansky district of Altai Krai. Previously, organic fertilizers were not used on the experimental plot. The field experiment included 5 variants in 3-fold repetition. The area of each repetition was 500 m2.

Field experiment variants: application of manure 10 t/ha, application of sewage sludge 15 t/ha, application of sewage sludge 45 t/ha, application of a mixture of manure 5 t/ha and sewage sludge 15 t/ha, control (without application of poultry manure and WWS).

The field experiment was established with oilseed radish on green mass.

Results. In the field experiment we used sewage sludge with storage period on sludge pads for more than 5 years, which were taken from sewage treatment facilities of Barnaul, as well as mixed poultry manure from different-aged laying hens with cage housing of JSC "Poultry farm "Molodezhnaya", which had been digested in a pile for 12 months.

Based on the conducted research, the yield of oilseed radish was determined. During the studies, the maximum yield of oilseed radish was formed on the variant with the use of poultry manure rate of 10 t/ha, it amounted to 84.2 t/ha. A little inferior to this value was the yield of oilseed radish with OSV variant - 45 t/ha, it amounted to 79.6 t/ha. The lowest yield was formed on the control - 49.4 t/ha.

The difference in mean was evaluated by Student's t-test at a confidence level of 0.95. The difference between control and poultry manure application was 34.78. The difference between control and application of 15 t/ha sewage sludge was 12.99. The difference between control and application of 45 t/ha sewage sludge was 30.16. The difference between control and application of a mixture of poultry 5 t/ha litter and 15 t/ha sewage sludge was 24.46.

As a result of studying the effect of experiment variants on the yield of oilseed radish using information-logic analysis, the coefficient of efficiency of information transfer K (radish) = 0.3186 was obtained.

Conclusion. Thus, the information-logic analysis revealed 31.8% effect of organic waste application on yield of oilseed radish. The information-logic analysis also revealed 18.89% effect of organic wastes on mass fraction of crude ash and 19.70% mass fraction of crude protein of green mass of oilseed radish in the experiment variants.

Sponsorship information. The work was carried out under the state order of the Ministry of Agriculture of the Russian Federation in 2023. Reg. No. NIOCTR 123032900014-7.