| Hechi city of guangxi is a key area of poverty alleviation and development,and it is also a difficult area of ecological control of rocky desertification.The city fully planted Juglans regia L,so whether it can normally grow strong and high yield is a common concern of the local government and people.Taking fengshan county,hechi city as an example,this study conducted a comprehensive and detailed investigation on the planting area,planting varieties,site conditions,production and processing as well as government support of Juglans regia L.This paper comprehensively discusses the situation of the total Juglans regia L resources in fengshan county,the effect of site conditions on Juglans regia L growth and fruition,and the status of deep processing of walnut industry in fengshan county combined with scientific data analysis methods.To find out the most suitable species and site conditions for Juglans regia L cultivation in fengshan county,it is expected to provide scientific basis for selection and planting management of Juglans regia L in hechi city and even the whole guangxi.The problems existing in the Juglans regia L processing industry in fengshan county were analyzed deeply,so as to provide reference for the next development planning of the Juglans regia L processing industry in fengshan county.The following conclusions are mainly obtained:(1)The planting area and production area of Juglans regia L.increased year by year from 2011 to 2017 in fengshan county.In 2011,the Juglans regia L.planting area was 640 thousand hm2,the county had developed a total of 2310 thousand hm2 for planting quality walnuts at the end of 2017.The Juglans regia L.production area increased from 19 thousand hm2 in 2011 to 43 thousand hm2 in 2017.1n fengshan county,the terrain of Juglans regia L cultivation is divided into four types:gentle slope,barren land,platform and stone-seam field,among which the area of stone-seam field is the largest,accounting for 40.21%.In fengshan county,the town with the highest survival rate is zhongting town,and the town with the highest production rate is pingle town.The serious falling flowers accounted for 20%and the serious fruit failure accounted for 24.74%in fengshan county Juglans regia L.Although fengshan county has a long time of Juglans regia L cultivation,the total number of fruit years is relatively short.(2)Based on the analysis of the effect of site conditions on the growth and fruiting of the Juglans regia L,it is concluded that:the growth of the Juglans regia L decreased with the elevation increased,the change of altitude was not significant to the yield of Juglans regia L.As the planting density increases,it also shows a downward trend.The slope and slope direction had no significant effect on the growth and yield of the Juglans regia L.There was significant difference in the growth and yield of Juglans regia L by soil type.The growth and yield of Juglans regia L on the yellow loam were better than those on the red loam and sandy loam.The quality of soil made a significant difference to the growth and yield of the Juglans regia L.The growth of the Juglans regia L in the middle loam was the best and the yield of the light loam was the highest.The yield of Juglans regia L varied significantly with soil thickness,and the yield was higher with soil thickness of 20～50cm and>50cm.(3)In fengshan county,the management of paolan walnut soil was good with 62.89%,average with 29.9%,poor with 7.22%.The number of times of soil plowing,weeding and fertilizing was more than 2 times.Overall,soil management is better in fengshan county.The management of the tree body on the Juglans regia L,the top was 97.94%in the year of planting,the pruning was 82.47%,and the loop cutting was 74.23%.In the year of plantation,97.94%were myocardial extraction,82.47%were pruning,and 74.23%were ring cutting.The total tree body management was good.(4)The number of walnut processing enterprises in fengshan county has grown from 0 before 2010 to 6 in 2018,the registered trademark of walnut oil is"feng you 1","he shouyuan" and "paolijian",Fengshan county Juglans regia L deep processing industry is booming.In addition,the government strongly supports the development of walnut industry in guangxi,and promotes the development of walnut industry by setting up special financial funds,rewarding poor families for carrying out special industrial projects and so on.t present,the guangxi zhuang autonomous region fund,which can be used for the development of Juglans regia L industry was the fund of forestry operational industry development subsidy(500 yuan/mu newly built,200 yuan/mu lowly change).During the period from 2000 to 2017,fengshan county invested over 1.4 billion yuan in the development of Juglans regia L industry. |
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