结球芥新品种甬包2号结球肥施用量的研究（英文）

Quantity of Fertilizer for a New Late-maturing Heading Mustard(Brassica juncea) Cultivar Yongbao 2 at the Heading Stage

[目的]研究甬包2号最佳结球肥施用量。[方法]田间试验设4个结球肥施用量处理和1个空白对照,小区净面积66.7 m2,3次重复,随机区组排列,比较各处理小区产量和收益。[结果]各施肥处理间产量无显著差异;施复合肥750 kg/hm^2时,产量最高;施复合肥450kg/hm^2时,收益最好。综合考虑高产、稳产和效益,施复合肥450 kg/hm^2可取得最佳效果。[结论]研究结果可为将来甬包2的种植和进一步推广提供参考依据。

[Objective] The study was to determine the optimal quantity of fertilizer required for Yongbao 2 during heading. [Method] According to a randomized block design with three replicates, four fertilizer treatments and one blank control were set in field trials. Each plot had a net area of 66.7 m2, Finally, the mustard yield and economic benefit per plot among the treatments were compared. [Result] There was no significant difference in yield among the four fertilizer treatments. The agronomic traits and yield of Yongbao 2 were improved when the quantity of fertilizer was gradually increased. The treatment with 750 kg/hm2 compound fertilizer during mus- tard heading had the highest yield. However, the treatment with 450 kg/hm2 of compound fertilizer during mustard heading had the highest economic benefit. By considering both yield and benefit, 450 kg/hm2 was the optimal quantity of fertilizer required for Yongbao 2 during heading. [Conclusion] The results will provide references for future application and extension of Yongbao 2.