铁尾矿基质改良对典型乔灌草生长影响的实验研究
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摘要
为分析铁尾矿基质改良措施对植物生长状态的影响,开展了草本紫花苜蓿、灌木紫穗槐和乔木刺槐的盆栽试验。结果表明:施肥处理对于紫花苜蓿株高的影响效果显著且优于掺土处理。对于紫穗槐与刺槐的叶绿素含量与植物蛋白含量,当掺土比例达到50%以上时才会有明显的促进作用。单因素掺土20%与施肥2%的处理方式对刺槐的生物量有明显影响,但继续增加施肥量与掺土比例对生物量的影响并不显著;无论是单因素施肥处理还是复合施肥与掺黄土处理,当施用有机肥达到5%时,3种植物的生长均受到抑制。
In order to study the effect of iron tailings substrate improvement measures on plant growth, pot experiments were carried out on alfalfa, black locust and arbor locust. Single factor treatments of loess, organic fertilizer, and loess with organic fertilizer were set up. The results showed that the effect of fertilization on plant height of alfalfa was significant and better than that of loess mixing. For the chlorophyll content and plant protein content of Amorphafruticosa and Robiniapseudoacacia, when the proportion of loess mixtures reached more than 50 %, there would be obvious promotion effect. The treatments of 20 % loess and2 % fertilizer had obvious effects on the biomass of Robiniapseudoacacia, however, the biomass of the two plants was not significantly increased by increasing the fertilization amount and the ratio of loess. The growth of three plants was inhibited when the dosage of organic fertilizer reached 5 %, no matter using single factor fertilization or compound fertilization with loess mixing.
In order to study the effect of iron tailings substrate improvement measures on plant growth, pot experiments were carried out on alfalfa, black locust and arbor locust. Single factor treatments of loess, organic fertilizer, and loess with organic fertilizer were set up. The results showed that the effect of fertilization on plant height of alfalfa was significant and better than that of loess mixing. For the chlorophyll content and plant protein content of Amorphafruticosa and Robiniapseudoacacia, when the proportion of loess mixtures reached more than 50 %, there would be obvious promotion effect. The treatments of 20 % loess and2 % fertilizer had obvious effects on the biomass of Robiniapseudoacacia, however, the biomass of the two plants was not significantly increased by increasing the fertilization amount and the ratio of loess. The growth of three plants was inhibited when the dosage of organic fertilizer reached 5 %, no matter using single factor fertilization or compound fertilization with loess mixing.
引文
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[5]李合生.植物生理生化实验原理和技术[M].高等教育出版社,2000.
[6]张宝娟,陈颖,郭耸松,等.铁尾矿不同改良措施对苜蓿和紫穗槐生长的影响[J].河北林果研究, 2015, 30(2):129-135.
[7]杨青川,康俊梅,张铁军,等.苜蓿种质资源的分布、育种与利用[J].科学通报, 2016(2):261-270.
[8]杨昊天,李新荣,刘立超,等.荒漠草地4种灌木生物量分配特征[J].中国沙漠, 2013, 33(5):1340-1348.
[2]项忠阳.刺槐和紫穗槐抗旱性比较试验[J].防护林科技, 2014(4):25-27.
[3]杨青川,康俊梅,张铁军,等.苜蓿种质资源的分布、育种与利用[J].科学通报, 2016(2):261-270.
[4]刘秀丽,宋平.植物叶绿素测定方法的再探讨[J].扬州大学学报:农业与生命科学版, 1999, 20(3):46-47.
[5]李合生.植物生理生化实验原理和技术[M].高等教育出版社,2000.
[6]张宝娟,陈颖,郭耸松,等.铁尾矿不同改良措施对苜蓿和紫穗槐生长的影响[J].河北林果研究, 2015, 30(2):129-135.
[7]杨青川,康俊梅,张铁军,等.苜蓿种质资源的分布、育种与利用[J].科学通报, 2016(2):261-270.
[8]杨昊天,李新荣,刘立超,等.荒漠草地4种灌木生物量分配特征[J].中国沙漠, 2013, 33(5):1340-1348.