Effect of Fagopyrum esculentum in Relay Intercropping with Different Densities on Weed Control and Growth of Amorphophallus konjac
To deepen research on weeds eco-control technology,we carried out weeds control technology of sowing Fagopyrum esculentum once,and analyzed effect of F.esculentum in relay intercropping with different densities on weed control and growth of Amorphophallus konjac in Weining County in 2022.In this work,a field plot experiment was set up with the following treatments:five F.esculentum sowing densities of 3.5,7.0,10.5,14.0,17.5 kg/667 m2 and one check(CK)of chemical weed control and sowing F.esculentum free.The results showed that F.esculentum in relay intercropping had a better effect on controlling weeds in A.konjac fields,and the trends of plant and fresh weight control effects on weeds increased as F.esculentum sowing densities increased.F.esculentum sowing densities had little effect on A.konjac emergence rate,and there were no significant difference in different treatments.With the increasing of F.esculentum sowing densities,the stem height of A.konjac increased,and diameter of its stem and leaves scattered presented the trend of firstly increased and then decreased.Weeds control technology of sowing F.esculentum could increased yield of A.konjac with the increasing rate of 4.26％-19.85％.When the sowing density of F.esculentum was 10.5 kg/667 m2,the yield of A.konjac was highest with 2 124.12 kg/667 m2,which was most significantly higher of 19.85％than CK(P＜0.01)and significantly higher than T1(P＜0.05).
weedweeds eco-control technologyAmorphophallus konjacFagopyrum esculentum in relay intercropping
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