摘要
通过对60个农户跟踪调研,利用边界线分析法,研究了小农户果园管理行为对苹果园郁闭度的影响。结果表明:果园郁闭度范围为0.49~0.93,小农户生产条件下郁闭度差异的产生由诸多因素综合导致,包括农户特征、栽培管理、养分投入等,其中农户年龄、种植年限、树龄以及氮肥施用量和氮肥基追比对果园郁闭度的贡献率分别是12.72%、5.33%、4.29%、3.79%、3.68%,是影响果园郁闭度的关键因素;不同郁闭度果园,果实品质存在显著差异,其中果园郁闭度与果实单果质量、可溶性固形物含量、果实红色程度(a^(*))均呈显著负相关关系,与果实光泽度(L^(*))、黄色程度(b^(*))呈显著正相关关系。因此,规范小农户生产管理行为,推动郁闭果园改造,对提升果实品质、推动当地苹果产业绿色发展具有重要意义。
The effect of smallholder farmers'management on the canopy density of apple orchard was studied by follow-up survey of 60 farmers using boundary line analysis method.The results showed that the canopy density of orchards ranged from 0.49 to 0.93,the differences in canopy density under production conditions of smallholder farmers were comprehensively caused by many factors,including characteristics of farmers,cultivation management and nutrient input.The key factors affecting orchard canopy density were farmers′age,planting years,tree age,applying dosage of nitrogen fertilizer and the ratio of basic nitrogen fertilizer to additional nitrogen fertilizer,their contribution rates to orchard canopy density were 12.72%,5.33%,4.29%,3.79%and 3.68%,respectively.The fruit quality showed significant differences in orchards with different canopy densities.The canopy density of orchards was significantly negative correlated with single fruit weight,content of soluble solids and redness of fruits(a^(*)),and was significantly positive correlated with fruit gloss(L^(*))and yellowness(b^(*)).Therefore,it is of great significance to regulate the production management behavior of smallholder farmers and to promote the transformation of canopy orchards for improving the quality of fruits and promoting the green development of local apple industry.
作者
张俊娜
王冲
张东
杨晨
ZHANG Jun-na;WANG Chong;ZHANG Dong;YANG Chen(College of Resources and Environment,China Agricultural University,Beijing 100193,China)
出处
《江苏农业学报》
CSCD
北大核心
2021年第1期163-168,共6页
Jiangsu Journal of Agricultural Sciences
基金
国家重点研发计划项目(2016YFD0201100)。
关键词
苹果
果园
郁闭度
边界线分析
农户行为
果实品质
apple
orchard
canopy density
boundary line analysis
farmers′behavior
fruit quality
