Sulphur deficiency in world wide
Sulphur deficiency is everywhere. Because of the intensified agriculture sulphur uptake from arable lands by yields also increased. Because of diminished industrial emissions to the atmosphere, income of the sulphur to the soil decreased. Most vulnerable to sulphur deficiency are those soils where non sulphur content fertilizers are applied. Territories with coarse texture and sandy soils containing little organic matter are also exposed to sulphur deficiency. It happens because sulphur, likewise nitrogen, is mobile in soil and therefore easily leaching with rains or irrigation waters. Studies on different crops around the world show that there a decrease in yields and quality of crops when soil deficiency.
How to diagnose?
To determine precisely which nutrient is lacking, soil chemical analysis has to be conducted. However, this is labor intensive and time consuming procedure. Moreover, sometimes it is impossible to make.
Leaves of a plant, having sulphur deficiency, cover with crust and begin to turn yellow. Plants looks withering. Plant is lower than the normal one. Panicles are shortened. Amount of spikes/seeds decreases.
Leaves are light green and yellowish. Size of leaves and internodes decreases. Leaves chlorosis starts from edges and spreads to center. In the case of high deficiency, entire plant turns yellow and leaves are falling. Flowering and ripening is delayed.
When sulphur deficiency, leaves, especially young, turn yellow. Plant growth slows down. Leaves chlorosis is accompanied with green traces parallel to midribs. Leaves become narrow and short.
Leaves are folding. Lower part of a leave and stem become reddish. Flowering stops earlier, consequently there are less pods forming. Sulphur deficiency leads to oil content decrease in seeds.
Leaves and flowers grow pale. Stem is lower, internodes are shorter than usually. Number and size of leaves are lesser.
Sulphur deficiency affects upper parts of plants. The entire length of a plant grows yellow between midribs. Then it turns red at the base of the stem and at the edges of leaves, spreading to the center.
Young leaves are folding. Stem grows yellow.
Colour of plants is pale green. Yellowing can be noticed at any part of the plant. In the case of high deficiency, stem and scape turn red.