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草业学报  2010 

灌溉定额对夏播裸燕麦产量和品质的影响

, PP. 204-209

Keywords: 灌溉定额,裸燕麦,产量,品质

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Abstract:

在大田条件下,采用随机区组设计,研究了不同灌溉定额对夏播裸燕麦白燕8号籽粒产量、籽粒品质、籽粒矿质元素含量和饲草品质的影响。结果表明,夏播裸燕麦灌溉定额为150mm的滴灌处理(W4)时籽粒产量最高,其次为W5(180mm)、CK(200mm)、W3(120mm)、W2(90mm)、W1(60mm)。灌溉定额较小的W1、W2、W3三处理的产量构成三要素均受到一定程度的影响,尤其是穗粒数和公顷穗数显著减少,造成产量显著降低。灌溉定额为120mm的滴灌处理(W3)品质最好,粗蛋白、粗脂肪和β-葡聚糖含量分别比传统灌溉处理(CK)提高4.53%,8.58%和18.29%,差异显著(P<0.05)。W3处理籽粒中钾、锌、铁、铜、锰含量均显著高于传统灌溉,钙、镁含量差异不显著。W3处理有较高的可消化干物质和相对饲用价值,分别比传统灌溉处理提高3.37%和9.28%,差异显著(P<0.05)。

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