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首页> 外文期刊>New Zealand Journal of Crop and Horticultural Science >Yield and quality of malting barley (Hordeum vulgare L. ‘Valetta') in response to irrigation and nitrogen fertilisation
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Yield and quality of malting barley (Hordeum vulgare L. ‘Valetta') in response to irrigation and nitrogen fertilisation

机译：灌溉和施氮对大麦（Hordeum vulgare L.“ Valetta”）的产量和品质的影响

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Abstract Interactions of soil water and nitrogen (N) fertiliser application on the quality of barley (Hordeum vulgare L. ‘Valetta') for malting were studied in a rain shelter experiment at Lincoln, New Zealand. Treatments were arranged in a factorial design, consisting of five levels of soil water (fully irrigated, rain‐fed, early drought, late drought, and full drought) and four levels of N fertiliser (nil, 1 × 50, 2 × 50, and 3 × 50 kg N/ha). N treatments were applied at emergence, appearance of the second node, and at flowering, respectively. Variables indicative of grain quality (N concentration, grain size, and screenings) and micro‐malting characters (water uptake, malting loss, N index, wort‐N, β‐glucan, fine extract, coarse extract, and fine‐coarse difference) were evaluated for responses to the water and N treatments. Drought influenced the distribution pattern of kernel mass along the main stem and tiller spikes and also influenced the relative proportions of grain in the standard size categorie...
机译：摘要在新西兰林肯市的雨棚试验中，研究了土壤水和氮（N）肥施用对大麦制大麦品质的相互作用。处理方式采用因子设计，包括五个层次的土壤水（充分灌溉，雨水灌溉，早期干旱，晚期干旱和完全干旱）和四个层次的氮肥（无，1×50、2×50，和3×50千克N / ha）。分别在出苗，第二节出现和开花时进行了N次处理。指示谷物品质（N浓度，粒度和筛分）和微麦芽特性（水分吸收，麦芽损失，N指数，麦芽汁，β-葡聚糖，精细提取物，粗提取物和粗略差异）的变量评估对水和氮处理的反应。干旱影响了沿着主茎和分till穗的籽粒质量分布模式，也影响了标准尺寸类别中谷物的相对比例。

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