Effect of sulphur fertilisation on yield and quality of white mustard seeds
2009
Ryant, P.,Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Ustav Agrochemie, Pudoznalstvi, Mikrobiologie a Vyzivy Rostlin
The objective of the present study was to estimate the effect of different forms of sulphur on yields and qualitative characteristics of white mustard seeds in a pot trial conducted in 2004. The following variants were studied: O fertilizing (1); fertilizing the soil with elemental S (2) or ammonium sulphate (3) or gypsum (4); foliar application of elemental S with bentonite (5). Significantly higher yields of mustard seeds and 1000-seed weight were achieved after foliar application of S. The variants where gypsum was applied showed the highest average number of branches and pods and also straw yields. After gypsum fertilization or foliar application of S the oil concentration in the mustard seeds exceeded 25%. The proportion of seeds greyish on their surface, a sign of mildew, significantly decreased after S fertilization, especially after the foliar application of S. Some soil characteristics were variably modified after the application of the different forms of S fertilization.
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