ABSTRACT

The study aims to assess seed yield of yellow lupine, seed chemical composition, weed infestation of lupine crop, and contents of organic C and total N in the soil cultivated in the conventional tillage (CT), reduced tillage (RT), and no-till (NT) systems. The experiment was established on sandy-clay soil classified as Rendzic Phaeozem. It was set up in a randomized blocks design in 3 replicates having size of 75 m × 6 m. The lupine seed yield was higher in the CT system than in the RT and NT systems, due to a higher plant number m⁻², pod number m⁻², and seed number m⁻². The tillage systems had little effect on the contents of protein, phosphorus, magnesium, and calcium in the seeds; however, ash content of the seeds increased and that of potassium decreased in the NT system compared to the CT and RT systems. The tillage systems also affected lupine infestation by weeds. A higher weed number m⁻² and their air-dry weight were determined in the RT system compared to the CT and NT systems. The NT and RT systems system increased contents of organic C and total N in the soil compared to the CT system.

摘要

本研究旨在评估黄羽扇豆的种子产量、种子化学成分、羽扇豆作物的杂草侵染情况以及常规耕作 (CT)、减耕 (RT) 和免耕土壤中有机碳和总氮的含量。直到（NT）系统。该实验是在分类为 Rendzic Phaeozem 的沙质粘土上建立的。它采用随机区组设计，3 个重复，大小为 75 m × 6 m。^{由于植物数 m -2}、豆荚数 m ^-2和种子数 m ^-2较高，CT 系统中的羽扇豆种子产量高于 RT 和 NT 系统. 耕作制度对种子中蛋白质、磷、镁、钙的含量影响不大；然而，与 CT 和 RT 系统相比，NT 系统中种子的灰分含量增加，钾含量降低。耕作系统也影响了杂草对羽扇豆的侵扰。与 CT 和 NT 系统相比，在 RT 系统中测定了更高的杂草数量 m ^-2及其风干重量。与 CT 系统相比，NT 和 RT 系统增加了土壤中有机碳和总氮的含量。