配方施肥对赤皮青冈容器苗生长的影响  

Effects of formulated fertilization on growth Cyclobalanopsis gilva container seedlings

作　　者：赵嫦妮[1] 徐德禄 李志辉[1] 

机构地区：[1]中南林业科技大学林学院,湖南长沙410004 [2]玉池国有林场,湖南汨罗414400

出　　处：《中南林业科技大学学报》2013年第5期22-25,共4页Journal of Central South University of Forestry & Technology

基　　金：国家科技支撑计划课题"楸树和赤皮青冈珍贵用材林定向培育技术研究与示范"(2012BAD21B03);中南林业科技大学研究生科技创新基金资助项目"配方施肥对赤皮青冈幼苗生长和生理指标的影响"(2012sx03)

摘　　要：通过对赤皮青冈容器苗进行N、P、K配比施肥试验,研究其不同施肥配方处理下的苗木苗高、地径、地上干质量、地下干质量和总干质量等特征的变化。结果表明:不同施肥处理对赤皮青冈容器苗木各项指标均存在显著差异,处理2(尿素5 g+过磷酸钙3 g+氯化钾5 g)对其幼苗生长的促进作用最大,为最优施肥处理;经过2次施肥后处理2的苗木苗高、地径、地上干质量、地下干质量、总干质量和净光合速率分别是对照组的126.59%、124.55%、191.57%、248.57%、202.19%、222.81%。Through the combined fertilization(N,P,K) tests on Cyclobalanopsis gilva container seedlings,the changes of height,ground diameter,dry weight about the part of over-ground,underground and the total dry weight were investigated.The results show that there were significant variations among different combined fertilization;the second dispose(carbamide 5 g + superphosphate 3 g + kcl 5 g) had the maximum auxo-action,so it’s the optimum dispose;after two times treated,the second dispose’s height,ground,diameter,dry weight about the part of over-ground,underground,the total and net photosynthetic rate were separately 126.59%,124.55%,191.57%,248.57%,202.19%,compared with the matched group.

关 键 词：赤皮青冈 容器苗 配方施肥 生长量 生物量 净光合速率 

分 类 号：S792.99[农业科学—林木遗传育种]