摘要
为了探索适合天津重盐碱地改良的措施,试验采用4种生物法、物理法和化学法相结合的改良方法,比较了不同盐碱地改良工程下圆腊2号植株株高、地径、新梢生长量、冠幅及叶幕厚度的差异,并根据各指标隶属函数值,综合评价了5种改良方法的效果。结果表明:生态型和长效型的改良效果最好,隶属函数值分别为0.918、0.858,生态型处理下的植株新梢长度、冠幅、叶幕厚度为5个改良方法中最好的,长效型处理下的植株株高、地径、新梢生长量、冠幅、叶幕厚度等5项指标均居于第二;快速型处理的植株隶属函数值为0.737,表现为植株最高,茎最粗;经济型处理和对照上的植株表现均较差,隶属函数值分别为0和0.157。因此,建议天津重盐碱地的改良可采用生态型、长效型和快速型3种改良方法。
In order to study the method improved heavy saline-alkali land in Tianjin, the growth indexes such as plant height, diame- ter, shoot growth, crown width and leaf curtain thickness of Yuanla 2 were calculated ,and the membership function was analyzed by 5 kinds of methods which was combined with biological method, physical method and chemical method. The results showed that the plant membership function of ecological-type and long-term-type treatments was 0.918 and 0.858, and was the best in all treat- ments, and the shoot growth, crown width, leaf curtain thickness of ecological-type treatments was the most, the plant height, diame- ter, shoot growth, crown width and leaf curtain thickness of long-term-type treatments were the second. The plant membership func- tion of fast-type treatment was 0.737 with tallest plants and thickest stems compared with others. The membership function of eco- nomic-type treatment and CK was 0 and 0.157 separately, and was the worst. Therefore, it is suggested that the methods of ecologi- cal-type,long-term-type and prompt-type treatments may be used to improve heavy saline-alkali soil in Tianjing.
出处
《天津农业科学》
CAS
2015年第3期86-90,共5页
Tianjin Agricultural Sciences
基金
国家农业科技成果转化资金项目(2012GB2A100015)
天津科委科技特派员项目(14JCTPJC00530)
关键词
盐碱地
改良方法
圆腊2号
生长指标
隶属函数
saline-aline soil
improvement method
Yuanla 2
growth index
membership function
