engleski

Response of winter wheat to liming with Fertdolomit

The stationary field experiment with increasing rates (0, 5, 10, 20, 30, and 40 t ha-1) of liming material Fertdolomite containing 24.0% CaO, 16.0% MgO, 3.0% N, 2.5% P2O5 and 3.0% K2O was set up in 2008 on the acid soil with in the central Croatia. The experiment was conducted in a randomized block design in four replicates. In the following years (2009 – 2014) on the experimental plots the usual agricultural practices was applied and the annual field crops were rotated. Aim of this study was testing the response of winter wheat (cultivar Srpanjka) on liming in the 2013/2014 growing season. Grain yield, some agronomic traits and wheat grain quality parameters were evaluated. Precipitation amount on the experimental area during winter wheat growing period (Oct.-June) was slightly lower than long term average, but monthly distribution of precipitation were unfavourable because of drought in December-March period and oversupply in April-May. Mean air-temperature were by 1.9°C higher than usual. Average grain yield of wheat in the experiment was 5.33 t ha-1, with range from 4.71 on the treatment without liming to 6.10 t ha-1 on the 40 t ha-1. Application of 20 t ha-1 increased yield by 15%, and additionally by 15% on the highest liming rate. The results showed that yield increase may be attributed to higher ear density on limed plots. Grain proteins content and sedimentation value raised at higher Fertdolomite rates. Response of wheat to liming was affected by the weather characteristics during growing season.

liming ; winter wheat ; grain yield ; weather characteristics

nije evidentirano