Режим влажности парового поля в зернопаровых севооборотах в условиях Алтайского Приобья
Year: 2014
Type: article
Abstract: The effect of main tillage operations for bare fallow and its fallowing technologies in summer on soil moisture regime in the Priobye (the Ob River Area) of the Altai Region was studied. The main criterion of bare fallow use is moisture availability for following crops. Various techniques of main tillage resulted in quite similar soil moisture regimes of a fallow field. The studies were conducted on leached medium-thick medium-loamy chernozem. Field trial was the main research method. Low assimilability of precipitation by one-meter soil layer was revealed. The greatest increases of available moisture were revealed for the first autumn-winter period and the lowest ones for the second autumn-winter period. The increases caused by summer fallowing were of intermediate values. Statistical processing of the available moisture increase data in one-meter soil layer revealed weak difference between the studied techniques of main tillage. That suggests a conclusion on the possibility of main tillage minimization for bare fallow. The resource-saving effect results from tillage depth reduction. The available moisture reserves in the studied soil layers revealed insignificant differences, particularly for the variants with V-chisel tillage, nevertheless deep V-chisel tillage revealed somewhat greater values. The reserves of available moisture on all test dates for all studied main tillage techniques in both trials revealed greater values in the first half meter of soil layer.
Language: Russian
Subfield: Soil Science
Domain: Life Sciences
SDGs: Life on land, Zero hunger
Open Access status: diamond
OpenAlex ID: W86195647