Abstract Residue incorporation in agriculture associated with crop rotation, benefits the environment, soil fertility, and crop production. However, the benefits of conservation agriculture practices in soil fertility and crop yield increases come up after several years. To study durum wheat (Triticum turgidum L.) crop production under conservation agriculture with incorporation of residues a biannual rotation experiment was conducted in a volcanic soil in south-central of Chile.The experiment consisted was comprised of two crops, canola (Brassica napus L.) and bean (Phaseolus vulgaris L.), and four levels of residue incorporation (0%, 50%, 100%, and 200% of generated residue). Results indicated that grain yield, grain P, and residue K concentrations were higher when the previous crop was bean. Sedimentation values (SDS test), yellowness values (b), grain N concentration, grain and residue Ca concentrations, were higher when the previous crop was canola. The different leves of applied residue for the previous crop only presented effect on sedimentation values and yellowness values. Even though to obtain consistent results about the effect of different residue levels on a crop rotation experiments a larger number of crops cycles is required, the present work showed relevant results in a short time crop rotation. Highlights Bean pre-crop increases durum wheat grain yield respect to canola crop in short-time rotations. Canola pre-cop increases sedimentation and yellowness value in durum wheat grain.

中文翻译：

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硬粒小麦籽粒产量、籽粒质量和植物养分浓度对两次半年轮作的不同残留水平的响应

摘要 农业中与轮作相关的残留物掺入有益于环境、土壤肥力和作物生产。然而，保护性农业实践在土壤肥力和作物产量增加方面的好处在几年后出现。为了研究在保护性农业下结合残留物的硬粒小麦 (Triticum turgidum L.) 作物生产，在智利中南部的火山土壤中进行了一年两次的轮作试验。该试验包括两种作物，油菜 (Brassica napus L.) .) 和豆 (Phaseolus vulgaris L.)，以及四种残留物掺入水平（产生残留物的 0%、50%、100% 和 200%）。结果表明，当前茬作物是豆类时，粮食产量、粮食 P 和残留 K 浓度较高。沉降值（SDS 测试），黄度值 (b)、谷物 N 浓度、谷物和残留 Ca 浓度在前一季是双低油菜籽时更高。前茬作物施用残留物的不同水平仅对沉降值和黄度值产生影响。即使要获得关于不同残留水平对轮作实验的影响的一致结果，需要更多的作物周期，但目前的工作在短时间轮作中显示了相关结果。亮点 豆类预作物在短时间轮作中提高了硬质小麦的产量，而不是双低油菜籽作物。Canola pre-cop 增加了硬粒小麦籽粒的沉淀和黄度值。前茬作物施用残留物的不同水平仅对沉降值和黄度值产生影响。即使要获得关于不同残留水平对轮作实验的影响的一致结果，需要更多的作物周期，但目前的工作在短时间轮作中显示了相关结果。亮点 豆类预作物在短时间轮作中提高了硬质小麦的产量，而不是双低油菜籽作物。Canola pre-cop 增加了硬粒小麦籽粒的沉淀和黄度值。前茬作物施用残留物的不同水平仅对沉降值和黄度值产生影响。即使要获得关于不同残留水平对轮作实验的影响的一致结果，需要更多的作物周期，但目前的工作在短时间轮作中显示了相关结果。亮点 豆类预作物在短时间轮作中提高了硬质小麦的产量，而不是双低油菜籽作物。Canola pre-cop 增加了硬粒小麦籽粒的沉淀和黄度值。亮点 豆类预作物在短时间轮作中提高了硬质小麦的产量，而不是双低油菜籽作物。Canola pre-cop 增加了硬粒小麦籽粒的沉淀和黄度值。亮点 豆类预作物在短时间轮作中提高了硬质小麦的产量，而不是双低油菜籽作物。Canola pre-cop 增加了硬粒小麦籽粒的沉淀和黄度值。