The common practice of sowing cotton in breeding plots is to dipple the seeds by hand.This system is prefered to drilling since the quandities of seed material handled are small and the number of units to be sown is very large.In the course of sowing trials conducted on the black soils of the Hagar Agricultural research Station.difference have been noticed from the very beginning in the mulch of the plots dibbled by the hand and of those sown with a drill.Drill sown plots have an advantage over those sown by the drill.The furrows are covered immediately by working a blade harrow and the soil is compacted over the seed leaving a fine mulh on the top.The effect of this harrowing lats for a long time In the dibbled plots on the other hand it is not possible to lodge the seed at a uniform depth.Further as no harrow is passed.the top soil gets dry and hard.and starts craking earlier leading to depletion of soil moisture sooner.
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