Weed control in ley establishment

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English
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Ministry of Agriculture
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1900405922
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Language: 
English
Abstract: 
The trial established in Southern Nyanza in 1960 was testing two methods of weed control (Mowing and weedicide) in grass leys. The trial was laid down using Nandi setaria and Kenya white clover and the plots dressed on seeding with 0, 2, 4 and 6cwt of superphosphate per acre. The plots were then split for the weed control methods. The weedicides used were DNBP and 2:4 D.B. The weedicide treatment gave a lower yield (35.28 cwt/acre) than the mowing treatment (37.83 ton/acre). The plots had to be mowed three times before effective weed control was obtained but the weedicide was relatively ineffective in spite of two sprayings and appeared to decrease the yield of grass and clover slightly. Mowing did control the annual weed grasses such as (Eleusine coracana) and (Setaria Verticallata) which increased on the sprayed plots. The 2 cwt/acre phosphate treatment appeared to be the optimum and gave a yield of 38.41 cwt/acre. This treatment yielded significantly better than the control (yield 29.25 cwt/acre) at 5 percent level.
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Date of publication: 
August, 2015
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