The impact of the termination technology of agro-ecological service crops on soil properties in open field vegetable production
Laen...
Kuupäev
2018
Kättesaadav alates
Autorid
Tamm, Kalvi
Bender, Ingrid
Nugis, Edvin
Edesi, Liina
Võsa, Taavi
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
The
agro
-
ecological service crops (ASC) are introduced in the agro
-
ecosystems to
provide or enhance ecological services, thus promoting the whole soil
-
plant system equilibrium.
To avoid competition with the subsequent cash crops, the growth of the interposed
ASC is
terminated in advance of the cash crop planting. The traditional, most widespread technique to
terminate the ASC is incorporation as green manure into the soil by tillage (GM). However, since
tillage includes energy and labour consuming and soil dis
turbing operations, the use of
no/reduced tillage techniques (as the roller crimping technology
-
RC) has received increasing
interest.
An international research consortium (SOILVEG) including Estonian Crop Research Institute,
was established in 2015 with th
e aim to study among others the impact of ASC termination on
soil dry bulk density (BD), water content, soil structure and microbiological activity. Data are
collected from Estonian tri
als in 2016 and 2017 at Jõgeva.
The physical properties of 0
–
40
cm soil
layers were determined. Higher BD in soil layers
(0
–
20
cm) of plots with ASC and RC was determined comparing to the GM and control plots.
Bigger water content in same layer of plots with ASC and the RC was determined comparing to
the GM plots. The use of
the ASC
-
s helped to arise ratio of agronomically preferred soil particles.
Microbial activity was estimated by assessing of enzyme dehydrogenase activity in 0
–
20
cm soil
layer. There were no statistically relevant differences in soil
dehydrogenase activit
y (DHA)
be
tween the RC and GM treatments.
Kirjeldus
Article
Märksõnad
agro-ecological service cops (ASC), roller crimping, soil bulk density, soil gravimetric water content, soil structure, soil dehydrogenase activity, articles