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Properties of Arrhenatherum elatius under arable land set aside

机译：Arrhenatherum Elatius在耕地搁置的属性

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摘要

The aim of the experiment was to evaluate the development of Arrhenatherum elatius cv. Median sward under extensive exploitation (cut once or three times, mulching once or twice per year) and its effect on the yield of a subsequent crop. The field plot experiment was established in Prague (Czech Republic) in 1996. After seven vegetation years the sward was treated with a total herbicide and reestablished with Lolium multiflorum cv Lolita. The dry mass yield (three cuts per year) and the botanical composition were measured during three years. The yield of only A. elatius under mulching twice per year was significantly higher by 57% in comparison with the plots that were cut three times per year. The yield of invading wild species was lowest under mulching twice per year - 28-31% of the total DMY. The total DMY of the following crop - L. multiflorum, was significantly highest on the plots where the forecrop was cut once per year (8.8 t ha~(-1)), followed by those that had been mulched once per year (10% lower). The proportion of L. multiflorum in DMY was significantly highest on the plots where the forecrop was cut three times per year or mulched twice per year (92-96%).
机译：实验的目的是评估Arrhenatherum Elatius CV的发展。在广泛的剥削下（切割一次或三次，每年覆盖一次或两次）和其对后续作物产量的影响。现场情节实验于1996年在布拉格（捷克共和国）建立。七年植被岁月后，草地含有全食物，并用Lolium Multiflorum CV Lolita重新建造。在三年内测量干批次产量（每年三次切割）和植物组合物。与每年削减三次的地块相比，每年两次覆盖的A. Elatius的产量明显高于57％。入侵野生物种的产量在每年两次覆盖下最低 - 总DMY的28-31％。以下作物 - L. multiflorum的总DMY在每年切割一次前提下（8.8 T HA〜（-1））的地块上显着最高，其次是每年覆盖一次的人（10％）降低）。 DMY中L. multiflorum的比例在平面上每年切入三次或每年覆盖两次（92-96％）。

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