Forest Fertilization Research in Finland: A Literature Review

This paper summarizes results from fertilization research carried out in Scots pine ( Pinus sylvestris L.) and Norway spruce [ Picea abies (L.) Karst.] stands growing on mineral soil in Finland. The use of needle and soil analyses to indicate nutrient status and the need for fertilization are discussed along with the possibilities of increasing tree growth in various site types and stages of stand development. Doses, types of fertilizer, application time, growth increase, wood quality and the profitability of fertilization are also discussed. The stand response in terms of soil acidity, biological activity, soil fauna and resistance of trees to nutrient addition are all reviewed. The effects of fertilization on understorey vegetation, mushrooms and berries, and leaching loss of nutrients are also included.     

樱桃地食用菌果菇同步采摘的设计与实践效果

结合樱桃采摘进行了地栽食用菌实现果菇同步采摘的设计与实践。结果表明:在春天和初夏,地栽灰树花、鸡腿菇、双孢菇、粉红平菇、榆黄蘑、杏鲍菇可以在5月下旬至6月上旬出菇,实现了与樱桃同时采摘,香菇不太适合于樱桃林下栽培。樱桃林地4月中旬至6月中旬10cm地温和最低气温维持在10℃~23℃范围,对于地栽食用菌子实体的发生非常有利。对促进食用菌在观光休闲产业的定位与作用具有现实意义。     

香菇渣在韭菜基质栽培中的应用效果

采用盆栽试验,研究了香菇渣对基质栽培韭菜生长发育及产量的影响。试验结果表明：不同用量的香菇渣对韭菜生长发育影响显著,株高以T2处理最高,叶宽、茎粗和分蘖数等指标以T3处理最大;对韭菜产量的影响以T2处理最高;对叶绿素和类胡萝h素含量呈现先增加后降低的趋势,但各处理组均大于对照组;香菇渣比例在16．00％-50．00％之间对韭菜生长的效果均高于单独运用草炭的对照组,以他处理（香菇渣：草炭：珍珠岩=2：4：3）韭菜的生长发育及产量表现最优,香菇渣对草炭最适宜的替代率为33．33％。     

蘑菇分离物的DNA指纹鉴别

按照植物理学原理，蘑菇分离物应依据柯赫法则（Koch's postulate)回接，在一定条件下，人工诱用蘑菇）难以人工诱发子实体，即使能形成子实体也费时费力，本文介绍DNA指纹鉴别技术，即运用RAPD－PCR技术制成分离物及对应子实体指纹图谱，分析它们间DNA同源性及遗传相似度以鉴别分离物真的，探求快速，简便，有效的鉴别方法。