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在红枣果园间作不同牧草,测定产草量以及对果园小环境的影响,与清耕区进行比较分析,为红枣果林行间种草利用提供科学依据。结果表明,红枣林行间套种草木犀、大叶苜蓿、苏丹草、一年生黑麦草的干草产量为9 198.3、8 775.3、14 331.75、7 576.8 kg/hm2;与清耕区相比,生草区的地温与空气温度降低,空气相对湿度得到提高;土壤全量养分发生变化,有机质含量得到有效提高,间作豆科牧草对全氮含量的改善较明显,表现为豆科>禾本科>清耕,各处理区中土壤全磷含量随土层加深略有上升的趋势,全钾含量则差异均不显著。红枣间作牧草不仅可以保证一定的牧草产量和品质,而且对果园生态具有改善作用。
In the jujube orchards for different forage, determination of the amount of grass production and the impact on the orchard environment, and the tillage area were compared for the jujube fruit trees to provide scientific basis for the use of grass. The results showed that hay production of jujube forest intercropping herbaceous rhizome, large leaf alfalfa, sudangrass, annual ryegrass was 9 198.3, 8 775.3, 14 331.75, 7 576.8 kg / hm2; The temperature and air temperature of the area decreased and the relative humidity of air increased; the total nutrient of soil changed, the content of organic matter increased effectively, and the improvement of total nitrogen content of intercropped legume forages was more obvious, which represented as Leguminosae> Gramineae> The content of total P in soil increased slightly with the increase of soil depth in all treatment areas, while the content of total potassium did not show significant difference. Jujube forage grass can not only ensure a certain amount of pasture production and quality, but also to improve the orchard ecology.