优质常规稻天龙1号轻简高效栽培模式试验

Study on the Light-simplified, High-efficiency Cultivation Mode of High Quality Conventional Rice Tianlong 1

以优质常规稻天龙1号为材料,于2019-2020年在永州市零陵区和道县开展水稻常规栽培模式和轻简化栽培模式的对比试验,以不施肥处理为对照,旨在探索适合天龙1号大面积推广的绿色高效轻简化栽培模式。结果表明:轻简化栽培模式下,天龙1号的生育期适中,株高及相关经济性状均与常规栽培模式相当,产量高于常规栽培模式及对照,且人工成本较常规栽培模式节省了38.89%,农药使用量减少了21.95%,经济效益提高了124.7%~139.4%,所产稻壳和糙米中农药残留低于国际和国内限量标准。这表明该轻简化栽培模式能够很好地控制成本,提高农药利用率,减少农药施用量,在保障粮食生产安全的同时实现增产增效,可在丘陵山区大面积推广应用。

Taking high quality conventional rice Tianlong 1 as material and no fertilization treatment as control,the comparative experiment of conventional cultivation mode and light-simplified cultivation mode of rice was carried out in Lingling District and Dao County of Yongzhou from 2019 to 2020.The aim was to explore the green,efficient and light-simplified cultivation mode suitable for large-scale promotion of Tianlong 1.Results showed that under the light-simplified cultivation mode,the growth period of Tianlong 1 was moderate,the plant height and related economic traits were similar to those under the conventional cultivation mode,but the yield was higher than that under the conventional cultivation mode and of the control;additionally,the labor cost was saved by 38.89%,the pesticide consumption was reduced by 21.95%,and the economic benefit was increased by 124.7%-139.4%;furthermore,the pesticide residues in rice husk and brown rice were lower than the international and domestic limit standards.In summary,the light-simplified cultivation mode could effectively control the cost,improve the utilization rate of pesticides,reduce the application amount of pesticides,ensure the safety of grain production,and increase yield and production efficiency,which could be widely applied in hilly areas.