##plugins.themes.academic_pro.article.main##
Abstract
The article presents data from a field laboratory experiment conducted in the south of Uzbekistan in 2017-2020. Before sowing, soil moisture in the 0-30 cm layer averaged 13.6-14.3%, and in the arable layer 16.4-16.9% and the volumetric mass in the arable layer was 1.26-1.28 gramm cm3 , and in a layer of 30-50 cm 1.30-1.32 gramm cm3 . Soil moisture at the end of the growing season in the layer was 16.0-16.5% and the volumetric mass in the arable layer was 1.28-1.30 gramm cm3 and in the sub-arable layer 1.38-1.40 gramm cm3 . The water permeability of the soil before sowing oilseeds is 520-550 m3 ha-1 , in the initial state of the soil the humus content in the 0-30 cm layer was 0.669%, in the sub-arable soil layer 0.597%, total nitrogen, respectively, 0.054-0.059%, and gross phosphorus 0.124- 0.100%. The general state of nutrients after repeated (oilseed) crops showed a slight increase in their content. The humus content in the arable soil layer was 0.663-0.785%, the total nitrogen content in the 0-30 cm soil layer was 0.663-0.785%, the total nitrogen content in the 0-30 cm soil layer was 0.088-0.080%, in the under arable soil 0.050-0.069 %, and gross phosphorus, respectively, 0.130-0.139, and 0.124-0.127%, the content of humus, total nitrogen and gross phosphorus increased more after the cultivation of soybeans, peanuts and sunflowers, and a relatively low content was noted in the control (var. 1, 2) options.
Keywords
##plugins.themes.academic_pro.article.details##
This work is licensed under a Creative Commons Attribution 4.0 International License.
References
- Zelensky N.A., Avdeenko A.P., Bezlyudsky A.L. Cultivation of winter grain crops using fallow-mulching steam // Agriculture. 2008. No. 2. pp. 14-15.
- Zelensky N.A., Zelenskaya G.M., Mokrikov G.V., Shurkin A.Yu. Soil fertility: the present and future of our agriculture // Agriculture No. 5, 2018. – P.4-6
- Kapinenko I.G. About the present and future of our agriculture // Agriculture. 1990. No. 9. pp. 13-16.
- Kudrin A.S. Chemistry of serozems // J. Soil Science, 1947, No. 8, -P. 46-80
- Listopadov I.N., Shaposhnikova I.M. Soil fertility in intensive agriculture. M.: Rosselkhozizdat, 1984. 205 p.
- Mirzajonov K.M., Makhsudov H. Soil protection in Central Asia and the further development of cotton growing in the USSR // – M: Kolos, 1979, -P. 400-402
- Mirzajonov K.M., Yusupzhanov K.M. The influence of green manure crops on increasing the fertility of soils confirmed by wind erosion // SoyuzNIХI, -1981, issue. 46. 46–S. 76
- Ovsinsky I.E. New farming system. M., 1911. 217 p.
- Orlova L.V., Proskurin A.V., Kharchenko A.G. Direct sowing. Practical recommendations for the transition period. Samara: Ministry of Agriculture and Food of the Samara Region, 2007. 24 p.
- The state of organic matter and nitrogen compounds of leached chernozems depending on the methods of crop cultivation / N.F. Ganzhara, V.V. Verzilin, R.F. Baibekov and others // News of the Timiryazev Agricultural Academy. 2005. No. 3. pp. 1-13.