The effect of sulphur fertilization on yield and technological parameters of spring wheat grain
2004
Ryant, P. | Hrivna, L.,Mendel Agricultural and Forestry University, Brno (Czech Republic)
The objective of the present study was to estimate the effect of elementary sulphur and of other sulphur fertilisers on the yield and qualitative parameters of spring wheat. Each pot was filled with 6 kg of a mixture of fluvisoil and sand, pH 6.9, content of available P 83, K 103 (with additional fertilizing to 171), Ca 2058, Mg 184, total water-soluble sulphur 22 and sulphur sulphate 18 mg/kg. The following variants were applied in the trial: 1. Control 2. Elementary sulphur applied into the soil 3. Ammonium sulphate 4. Pregips H gypsum 5. Foliar application of elementary sulphur. The results of the one-year vegetation pot trial where various fertilizers containing sulphur were applied to spring wheat can be summarised as follows: Applications of elementary sulphur resulted in the highest grain yields. In the variant where elementary sulphur was applied to the soil the uptake of nitrogen by the grain was the highest and the exploitation of nitrogenous fertilizers was the best. The content of sulphur in the grain as the requirement for good baking quality was insufficient and the best results were achieved after foliar application of elementary sulphur. Compared to the standard, the content of nitrogenous substances was low, and was the highest in the variant where Pregips H gypsum was applied. The falling number was above 400 s signalising a low specific volume of bakery products and a dry and crumbly crumb. Applications of ammonium sulphate gave the best results in terms of the 1000 grain weight and proportion of grain over 2.5 mm on the sieve. The application of elementary sulphur into the soil did not reduce the soil pH and after harvest provided the highest supply of available sulphur in the soil
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