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在Ｑｕｅｂｅｃ中部和东部，对采取保护耕作措施的限制包括春季冷湿、生长季节短暂和的降雨方式多变。本研究目的在于确定保护耕作措施对Ｑｕｅｂｅｃ地区谷类作物种植制度的适合性。检测了在Ｋａｍｏｕｒａｓｋａ粘壤土和Ｓａｉｎｔ－Ａｎｄｒｅ重沙壤土上作物（春大麦）单作、春大麦－红三叶草轮作、耕作和杂草管理强度对中耕作物和杂草群体、干重的影响以及对籽粒产量和产量因素的影响。在粘壤点免耕中，中度杂草管理有利于作物建成、生长和获得籽粒产量，与犁耕（ＭＰ）处理相近。在５年中，免耕（ＮＴ）的籽粒产量平均为２８７７ｋｇ·ｈｍ－２，与之相对照的ＭＰ和ＣＰ（凿耕）分别为２８７０和２２６０ｋｇ·ｈｍ－２。籽粒产量不仅一致，而且轮作（３０１４ｋｇ·ｈｍ－２）高于单作（２３２２ｋｇ·ｈｍ－２）。在沙壤点作物建成、生长和产量对减少作物和杂草管理强度具有负反应。沙壤点的ＣＰ和ＮＴ处理中，大麦植株建成和杂草控制在单作中不如轮作中成功。免耕籽粒产量平均比ＣＰ低７％，比ＭＰ低２９％。
In central and eastern Quebec, restrictions on conservation tillage include cold and wet in the spring, short growing seasons and variable rainfall patterns. The purpose of this study was to determine the suitability of conservation tillage practices for cereal cropping systems in Quebec. The effects of crop rotation (spring barley) monocropping, spring barley-red clover rotation, tillage and weed management intensity on row crop and weed populations, and dry weight on Kamouraska clay loam and Saint-Andre heavy sandy loam soil, Yield and yield factors. In the no-tillage plot, moderate weed management favored crop formation, growth and grain yield, similar to plowing (MP). In five years, the NT yield was 2877 kg · hm-2 on average, compared with 2870 and 2260 kg · hm-2 for MP and CP respectively. The grain yield was not only the same, but also the rotation (3014kg · hm-2) was higher than the single cropping (2322kg · hm-2). Crop production at sandy soils, with growth and yield negatively responsive to reduced crop and weed management intensity. In the CP and NT treatments of sandy soil, barley plants and weed control were less successful than single rotation in the single cropping. No-till grain yield was 7% lower on average than CP and 29% lower than MP.