【摘要】 为提高羊草在自然生态条件下的结实率,通过对人工羊草地施用硼、锰、锌、铜、磷5种微量元素,并在喷洒次数、施用方法等方面设置了不同的处理,来研究其对羊草结实率的影响。结果表明:以直接施入土壤的效果较为理想,羊草最佳的生产条件组合是在返青前10～15d结合灌返青水肥施入土壤中施硼肥3.75kg·hm-2;返青前灌水30kg·hm-2,施有效氮和磷75和37.5kg·hm-2;抽穗期灌水30kg·hm-2,施有效氮和磷各37.5kg·hm-2;开花初期灌水30kg·hm-2。更多还原

【Abstract】 In order to improve the seed setting rate of Leymus chinensis under natural ecological conditions,the effects of boron,manganese,zinc,copper,phosphorus on the seed setting rate of Leymus chinensis were studied by applying different treatments in spraying times and application methods.The results showed that the best combination of production conditions for Leymus chinensis was applying boron fertilizer 3.75 kg·hm-2 for 10-15 days before returning to green,30 kg·hm-2 before returning to green,75 and 37.5 kg·hm-2 before returning to green,and 30 kg·hm-2 at heading stage.Available nitrogen and phosphorus were 37.5 and 30 kg·hm-2 at the beginning of flowering.更多还原