核桃经济林抗旱保水栽培技术的应用分析  

Application Analysis of Drought Resistance and Water Conservation Cultivation Technology in Economic Forest

作　　者：石春梅 Shi Chunmei(Extension Station of Forestry Technology Center,Ganzhou District,Zhangye City,Zhangye,Gansu 734000,China)

机构地区：[1]张掖市甘州区林业技术中心推广站,甘肃张掖734000

出　　处：《绿色科技》2022年第21期177-180,共4页Journal of Green Science and Technology

摘　　要：以甘肃省内核桃经济林为试验对象,针对目标经济林施用保水剂的最佳用量与部位。试验重点分析了核桃经济林将保水剂施用于底端;分别施用于中段与底端;分别施用于底端、中段以及顶部的三类差异化保水剂使用技术手段,同时将保水剂的施用数量分别控制为15 g、25 g、35 g、45 g 4类差异化施用量水平线上,以此探寻了不同施用位置与差异化施用数量对核桃经济林幼苗成活以及移栽生长质量方面的影响,结果表明:①L类保水剂以及XL类保水剂联合的三类施用区域以及四类保水剂剂量施用均可令目标经济林植株在移栽操作中得到100%的成活率;②将XL类保水剂全部施用于植株底层的方案可以核桃幼苗生长效率的最大化。可以见得:在经济林中应用以保水剂施用为代表的抗旱保水栽培技术,将有效抗击地方干旱胁迫威胁,全面保障干旱区域经济作物的健康成长。Taking the Gansu's Walnut Economic Forest as the test object,the optimal dosage and location of water-retaining agent for walnut economic forest in Gansu Province were studied.The test focuses on the use of the water retention agent in the walnut economic forest technical means of the three types of differentiated water retention agents,respectively from the bottom end,middle section and bottlom end as well as the bottom end,the middle section and the top.At the same time,the application quantity of water retention agent was respectively controlled as 15g,25g,35g and 45g four types of differential application level,in order to explore the effect of different application locations and different application quantity on seedling survival and transplanting growth quality of walnut economic forest.The results showed that:①L type of super absorbent polymers and the combination of three kinds of the XL type of super absorbent polymers applied area and four types of water retention agent dosage application can make the target of economic forest plants in the operation of transplanting survival rate by 100%;②The plan of applying XL water retention agent to the bottom layer of the plant can maximize the growth efficiency of walnut seedlings.It can be seen that the application of drought-resistant and water-preserving cultivation technology represented by water retention agent in economic forests will effectively fight against the threat of local drought stress and comprehensively guarantee the healthy growth of cash crops in arid regions.

关 键 词：经济林 抗旱保水 保水剂 

分 类 号：S727.3[农业科学—林木遗传育种]