专用有机肥对荒漠植物梭梭的生长及耐旱性的影响  

The special organic fertilizer in improving the growth and drought tolerance of desert plant Haloxylon ammodendron

作　　者：马红梅[1] 王锁民[1] 张建全[1] 张金林[1] 岳利军[1] 刘庭亮[1] 王武成[1] 柴琦[1] 

机构地区：[1]兰州大学草地农业科技学院,甘肃兰州730020

出　　处：《草业科学》2016年第2期240-248,共9页Pratacultural Science

基　　金：国家农业科技成果转化资金项目(2013GB2G100482);国家自然科学基金项目(31222053)

摘　　要：本研究探讨了武威市凉州区(中沙村、王庄村、长城乡)梭梭(Haloxylon ammodendron)大田育苗时施用专用有机肥及与化学肥料混合施用对梭梭生长和耐旱性的影响。结果表明,1)施专用有机肥显著增加梭梭株高、分枝数、层数、主茎直径、冠幅、鲜重和干重;2)中沙村样地中施专用有机肥使梭梭地上部的Na+含量显著增加(P<0.05);王庄村样地中施专用有机肥+磷酸二铵+尿素的处理显著增加了梭梭地上部的Na+、K+含量;长城乡样地中施专用有机肥+磷酸二铵+尿素处理使梭梭地上部K+含量显著降低(P<0.05);3)施专用有机肥既节约成本又可减少化学肥料的使用。因此,施专用有机肥不仅促进梭梭生长,而且提高其耐旱性。This study explored the effects of special organic fertilizer and mixture with chemical fertilizer on growth and drought tolerance of Haloxylon arnrnodendron seedling in three villages （Zhongsha, Wangzhuang and Changcheng） of Liangzhou District, Wuwei City. The results showed that： 1） The addition of special or- ganic fertilizer significantly increased the branching number, layers, main stem diamer, plant height, crown di- ameter and fresh weight and dry weight of H. arnrnodendron, and it＇ s density firstly increased and then de- creased along with time increasing. 2） The accumulation of shoots Na＋ increased significantly by applying the special organic fertilizer in the Zhongsha; Special organic fertilizer ＋ DAP ＋ urea fertilizer treatment signifi- cantly increased shoot Na＋ and K＋ accumulation in Wangzhuang; Special organic fertilizer ＋ DAP ＋ urea fer- tilizer treatment significantly decreased shoot K＋ accumulation in Changcheng. 3） The special organic fertilizer not only saved cost but also reduced the use of NPK fertilizers. The results showed that the special organic fer- tilizer could improve the growth and drought tolerance of H. arnrnodendron.

关 键 词：专用有机肥 梭梭 大田育苗 耐旱性 

分 类 号：S718.43[农业科学—林学]