The interaction of perennial ryegrass and timothy in mixtures and their reaction to clover and nitrogen in cut swards
The interaction of perennial ryegrass and timothy in mixtures and their reaction to clover and nitrogen in cut swards
复制标题
多年生黑麦草和梯牧草在混合物中的相互作用及其对割草中三叶草和氮的反应
DOI：
10.1111/j.1365-2494.1980.tb01524.x
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发表时间：
1980
影响因子：
2.4
通讯作者：
R. Binnie
中科院分区：
文献类型：
--
作者：
D. Chestnutt;P. W. Bartholomew;R. Binnie
对比了在白三叶存在和不存在的情况下，不同氮素处理下，提莫西草、多年生黑麦草和两者混合的试验结果，并结合前人的相关试验进行了考虑。有证据表明，在某些条件下，混合播种比单独种植两种草中的任何一种都能获得更高的产量。在第一次刈割后不经常刈割时，混合种的产量没有优势。白三叶草的加入改变了物种平衡，有利于多年生黑麦草，并且在三叶草存在的情况下，混合没有产生产量优势。产量优势可能与两种禾本科混交种优势顺序的季节变化有关。
Results of experiments where timothy, perennial ryegrass and mixtures of these two in the presence and absence of white clover and receiving various nitrogen treatments were compared, have been considered in the light of previous related experiments. There is evidence that under certain conditions greater yields of sown grass can be achieved from mixed seedings than from either of the two grasses on its own. No yield advantage was gained from mixtures of species when cut infrequently after a late first cut. Inclusion of white clover changed the balance of species in favour of perennial ryegrass and no yield advantage occurred with mixtures in the presence of clover. Yield advantage may be related to seasonal changes in the order of dominance of the two grass species in mixed seedings.