Uman NUH | today: 09/29/2020

Tension of the ecological balance by minimization of autumn plowing

Author(s) Eshchenko V.O., Doctor of Agricultural Sciences, Professor, Head of Department of General Agriculture, Uman National University of Horticulture, Ukraine
Kaliyevskiy M. V., Candidate of Agricultural Sciences , Associate Professor of Department of General Agriculture, Uman National University of Horticulture, Ukraine
Category General agriculture
year 2014 issue №1
pages 25-29 index UDK 631.51:631.95
DOI
Abstract Intensive tillage practices that were applied in our country for the last 50 years resulted in increased energy consumption of domestic tillage technologies and led to soil degradation. The article presents the results of minimization of autumn plowing under spring crops in the following 5-field crop rotation: barley-soya-rape-wheat-flax. Replacement of more energy demanding plowing for less energy demanding flat hoe cultivation and applying shallow practices instead of deep ones were estimated from the point of ecology. Field studies on the podzolized chernozem showed that none of the methods of minimization of autumn plowing changed the growth environment of various crops for the worse. Under the conditions spring deposits of available moisture in 1-metre layer of soil didn’t reduce, plow-layer density remained on the optimum level, total intrusion volume slightly reduced and healthy structure content remained on the rather high level. Experimental methods of minimization of autumn plowing didn’t reduce availability of plant food compounds but facilitated to increase biological activity of soil. The negative effect of minimization of autumn plowing was shown by increased potential and effective weed infestation of crops. On the average, replacement of moldboard plowing for boardless plowing at the beginning of crop growth in crop rotation increased the number of weeds by 44%; shallow plowing and flat hoe cultivation resulted in the increase by 32 and 22% each.
Key words minimization of autumn plowing of podzolized chernozem, spring crops, water and nutrient regimes of soil, weed infestation of crops
Download    (Total: 339)