山西科技
山西科技
산서과기
SHANXI KEJI
2011年
6期
126-127
,共2页
刘光生%刘源源%王继秀%张二明%陈红凤%王云会%许奋明%白海宁
劉光生%劉源源%王繼秀%張二明%陳紅鳳%王雲會%許奮明%白海寧
류광생%류원원%왕계수%장이명%진홍봉%왕운회%허강명%백해저
枣树%截干换冠%丰产
棘樹%截榦換冠%豐產
조수%절간환관%봉산
jujube%branch-cutting crown changing%high-yielding
吕梁现有枣林面积约13万hm2,其中50～70年生大龄枣树38 733 hm2,这部分枣树由于植株衰老、树冠残缺、主干心材腐烂、病虫害成灾,失去了利用价值,急需更新复壮改造后方可恢复产量和效益。
呂樑現有棘林麵積約13萬hm2,其中50～70年生大齡棘樹38 733 hm2,這部分棘樹由于植株衰老、樹冠殘缺、主榦心材腐爛、病蟲害成災,失去瞭利用價值,急需更新複壯改造後方可恢複產量和效益。
려량현유조림면적약13만hm2,기중50～70년생대령조수38 733 hm2,저부분조수유우식주쇠로、수관잔결、주간심재부란、병충해성재,실거료이용개치,급수경신복장개조후방가회복산량화효익。
There are 200 million mu of jujube trees in Luliang,in which are 58.1 million mu of old trees over 50 to 70 years,which have lost the value of use because of senescence of plants,incomplete crowns,rotten trunks and pest damages and need rejuvenation and transformation to restore production and efficiency.Therefore,from 2009 to 2011,the trees are transplanted and new crowns grew in the first year with less fruits,and all the branches yield fruits in the second year.
