TY  - CPAPER
U1  - Konferenzveröffentlichung
A1  - Borchert, Anne Friederike
A1  - Olfs, Hans-Werner
A1  - Pralle, Herbert
A1  - Kohlbrecher, Maik
A1  - Trautz, Dieter
T1  - Comparison of variable liming strategies in organic farming systems using online pH-measurements
BT  - Organic Crop Production (Vol. 1)
T2  - Organic is Life : Knowledge for Tomorrow
N2  - In organic farming, soil pH is one of the most important soil characteristics affecting nutrient availability, soil microbial activity and plant growth. Using the soil pH mapping sensor system Veris MSP, detailed information on in-field variability of soil pH can be obtained enabling spatial variable lime application. Scenario calculations for an organically managed field in Germany reveal that compared with the standard farm practice (i.e. uniform liming rate) variable lime application does not lead to higher costs while soil pH is optimized in different field zones resulting in increased crop productivity. Using two different lime qualities increases liming costs moderately but gives farmers the chance to increase pH quickly in extreme low pH areas.
KW  - Variable liming strategies
KW  - Online-sensor
KW  - Soil pH variability
Y1  - 2011
N1  - Third Scientific Conference of the International Society of Organic Agriculture Research (ISOFAR), 28.09.-01.10.2011, Namyangju (Korea)
SP  - 21
EP  - 24
PB  - ISOFAR
CY  - Bonn
ER  -