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THE SHIFTING OF WEED COMPOSITIONS AND BIOMASS PRODUCTION IN SWEET CORN FIELD TREATED WITH ORGANIC COMPOSTS AND CHEMICAL WEED CONTROLS

机译：用有机组合物和化学杂草控制处理甜玉米田杂草组成和生物量产生的变化

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The objectives of the research were to study the shift of weed compositions in sweet corn field treated with organic compost and chemical weed controls and to compare the effect of treatment combinations on weed growth, weed biomass and sweet corn biomass. The research was conducted in Bengkulu, Indonesia, from April to July 2014. Results showed that the number of weed species decreased after the trials from 14 to 13. There was a shift in weed compositions because 5 species of weeds did not emerge after the trials, but 4 new species were found. Chemical weed control used a herbiside mixture of atrazine and mesotrione applied during postemergence was the most effective method to control weeds, which was observed on decreased weed emergence and weed biomass down to 22.33 and 25.00 percent of control, respectively. Subsequently, biomass pro-duction of sweet corn increased up to 195.64 percent at the same trials. Biomass of weeds and sweet corn were also affected by the organic composts. Weed biomass was inhibited by treat-ment of composted empty fruith bunches of oil palm, whereas significantly increased of sweet corn biomass were observed in the plots of organic manure.
机译：该研究的目的是研究有机堆肥和化学除草剂处理后甜玉米田中杂草组成的变化，并比较处理组合对杂草生长，杂草生物量和甜玉米生物量的影响。该研究于2014年4月至2014年7月在印度尼西亚的班古鲁进行。结果表明，试验后杂草的数量从14种减少到13种。杂草组成发生了变化，因为试验后没有出现5种杂草，但发现了4个新物种。化学除草使用的是r去津和甲基磺草酮在出苗后施药的混合物，这是控制杂草最有效的方法，观察到杂草减少和杂草生物量分别降低至对照的22.33％和25.00％。随后，在相同的试验中，甜玉米的生物量生产增加了195.64％。杂草和甜玉米的生物量也受到有机堆肥的影响。杂草空果串的油棕处理可抑制杂草的生物量，而有机肥田中的甜玉米生物量则显着增加。

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