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Efficacy of pre-emergence herbicides for control of complex weed flora in transplanted rice

机译:出苗前除草剂对移植稻中复杂杂草植物的疗效进行疗效

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摘要

A field experiment was conducted at Chiplima, Sambalpur, Odisha during the rainy season of 2014 and 2015 to study the effect of sand-mix application of pre-emergence herbicides on weed population yield and economics of transplanted rice (Oryza sativaL.). Application of chlorimuron + metsulfuron 4 g/ha, bensulfuron 60 g/ha and pyrazosulfuron 16 g/ha alone was selectively effictive on broad-leaf weeds while pretilachlor 500 g/ha was effective on grasses. Pre-emergence application of pyrazosulfuron with pretilachlor (16 + 500 g/ha) was more effective in minimizing the density (10/m2), biomass (4.8 g/m2) of weeds and enhancing the weed control efficiency (89.3%), grain yield (6.14 t/ha), net returns ( 53.2 x 107 ha) and benefit: cost ratio (1.37) thanpretilachlor alone.
机译:在2014年和2015年的雨季,奥西沙,桑巴尔,奥西沙进行了一个田间实验,研究了砂混合在苗胃饲养前除草剂对移植稻(Oryza Sativalivalivalival)的杂草种群产量和经济学的影响。 Horthimuron + Metsulfuron 4 g / ha,单独的Bensulfuron 60 g / ha和吡唑葫芦16 g / ha在阔叶杂草上选择性地效果,而预防叶500 g / ha在草地上有效。 吡唑氟磺仑与预受预热(16 + 500g / ha)的预先施用在最小化杂草的密度(10 / m 2),生物质(4.8g / m 2),增强杂草控制效率(89.3%),谷物 产量(6.14 T / HA),净返回(53.2 x 107公顷)和益处:成本比(1.37)仅仅是丙二属。

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