两种铁肥对沟叶结缕草的应用效果  

Effects of Two Iron Fertilizings on the Growth of Zoysia matrella

作　　者：钱永生[1,2] 徐祥彬[1] 朱江敏[1] 吴剑丙[1] 张晓勤[1] 柴明良[2] 

机构地区：[1]杭州师范大学生命与环境科学学院,浙江杭州310036 [2]浙江大学园林研究所,浙江杭州310029

出　　处：《北方园艺》2012年第20期159-163,共5页Northern Horticulture

基　　金：浙江省教育厅资助项目(Y201121340)

摘　　要：通过对处于枯黄期沟叶结缕草的施肥试验,来确定沟叶结缕草在枯黄期施铁肥的最佳策略。结果表明:螯合铁肥的颜色分值和均一性好于无机铁肥,对草坪的转绿有显著效果,浓度为4kg/667m2的螯合铁肥使草坪复绿效果最好,但是综合价格因素,3kg/667m2的无机铁肥施肥效果虽不如螯合铁肥,但是价格实惠,效果也尚可;在无机铁肥施肥试验中,草坪MDA含量效果整体最好的是Fe3+;在螯合铁肥试验中,MDA含量效果整体最好的是3与4kg/667m2;在枯黄期,草坪CAT含量增幅会变小;各种肥料处理都不同程度地推迟了草坪枯黄时间的到来,具体天数从8～28d不等,螯合铁肥对草坪枯黄期要好于无机铁肥,且效果显著(P<0.05);而从草坪观赏性的角度出发,浓度为4kg/667m2的螯合铁肥综合效果最佳,但是价格偏贵。The investigation on the application of iron fertilizers of Zoysia matrella＇s during withering stage was carried out in this paper.The results showed that the chelated iron fertilizer was better than that of inorganic iron fertilizer on the color score and homogeneity,and had a significant effect on turning green.The chelated iron fertilizer at the concentration of 4 kg/667m2 was the best among the six types of fertilizers.Though the effect of inorganic iron fertilizer at the concentration of 3 kg/667m2 on lawn growth was not better than that of chelated iron fertilizer,the price was affordable and it had a relative action.In the inorganic iron fertilizer study,the results showed that the best concentration treatment on lawn MDA content was Fe3＋;in the chelated iron fertilizer study,the best concentration treatment on lawn MDA content was 3 kg/667m2 and 4 kg/667m2;at the green period,Z.matrella CAT content increased slowly.All fertilizer treatments delayed the coming of withering stage ranging from 8~28 d,and chelated iron fertilizer treatments showed better effect on the lawn brown than that of inorganic iron fertilizer treatments（P0.05）.On the view of lawn ornamental,the chelated iron fertilizer at the concentration of 4 kg/667m2 had the best effect,but the price was higher than inorganic iron.

关 键 词：沟叶结缕草 施肥 叶绿素 丙二醛 过氧化氢酶 绿期 

分 类 号：S688.4[农业科学—观赏园艺]