摘要
为研究不同肥料比例、肥料用量、施肥时期和灌溉周期4种因素对雷竹林的影响变化规律,利用水肥一体化技术和正交设计原理设置田间试验。结果表明:多因素正交处理较常规施肥处理增产197~5576 kg·hm^(-2),叶片含水率提高6.59%~16.18%;灌溉周期对土壤含水率、叶片含水率和笋产量的影响比肥料比例、肥料用量和施肥时期更大;灌溉周期因素间差异对叶片含水率影响达到显著水平,对土壤含水率和笋产量影响达到极显著水平;综合各因素分析,采用肥料比例3∶1∶2、肥料用量1377 kg·hm^(-2)、施肥分两个时期和20 d灌溉一次的水肥一体化管理模式可实现雷竹林高产。
In order to study the influnce of different fertilizer ratio,fertilizer dosage,fertilization period and irrigation period on Phyllostachys praecox forest,a field experiment was set up by using the technology of intergration of water and fertilizer and the principle of orthogonal design.The results showed that the bamboo shoot yeild of multifactor orthogonal design treatment was 197~5576 kg·hm^(-2)higer than that of conventional fertilization treatment,and the leaf moisture content was increased by 6.59%~16.18%;The effect of irrigation period on soil moisture content,leaf moisture content and bamboo shoot yield was greater than that of fertilizer ratio,fertilizer dosage and fertilization period;The difference of irrigation period factors had a significant effect on leaf water content and a very significant effect on soil water content and bamboo shoot yield;Based on the analysis of all factors,the management mode of the fertilizer ratio was 3∶1∶2,the fertilizer amount was 1377 kg·hm-2,two fertilization periods were used,and the irrigation period was 20-day could achieve high yield of Phyllostachys praecox forest.
作者
黄思远
余林
卢玉生
李怡
曾庆南
程平
况小宝
Huang Siyuan;Yu Lin;Lu Yusheng;Li Yi;Zeng Qingnan;Chen Ping;Kuang Xiaobao(Jiangxi Academy of Forestry,Nanchang Jiangxi 330013,China)
出处
《南方林业科学》
2021年第1期21-23,27,共4页
South China Forestry Science
基金
江西省重点研发计划项目(项目编号:20192BBFL60013)
江西省林业科学院重点研发项目(项目编号:2019510901)。
关键词
雷竹
水肥一体
正交设计
土壤含水率
叶片含水率
笋产量
Phyllostachys praecox
Intergration of water and fertilizer
Orthogonal design
Soil moisture content
Leaf moisture content
Bamboo shoot yield
