西南林业大学学报
西南林業大學學報
서남임업대학학보
JOURNAL OF SOUTHWEST FORESTRY COLLEGE
2015年
1期
12-16
,共5页
宋曰钦%乔春华%马小利%王立超
宋曰欽%喬春華%馬小利%王立超
송왈흠%교춘화%마소리%왕립초
青冈栎%指数施肥%苗高%地径%生物量
青岡櫟%指數施肥%苗高%地徑%生物量
청강력%지수시비%묘고%지경%생물량
Cyclobalanopsis glauca%exponential fertilization%height%ground diameter%biomass
以1年生青冈栎播种苗为研究对象,采用常规施肥和指数施肥方法,研究不同施肥方法对青冈栎苗苗高、地径、生物量等指标的影响。结果表明:在相同施肥量下,指数施肥与常规施肥对苗木生长影响差异不大,指数施肥的苗高是常规施肥的116.7%,生物量是107.3%,但地径生长量仅为常规施肥的78.3%;不同施氮水平处理对青冈栎苗木的苗高、地径、生物量影响显著,随着施肥水平的提高,苗木的苗高、生物量随之增加,且表现出显著性差异,但地径的差异未达到显著水平。今后应扩大施肥量的研究范围,以便在最合适的施肥量下比较指数施肥与常规施肥的差异。
以1年生青岡櫟播種苗為研究對象,採用常規施肥和指數施肥方法,研究不同施肥方法對青岡櫟苗苗高、地徑、生物量等指標的影響。結果錶明:在相同施肥量下,指數施肥與常規施肥對苗木生長影響差異不大,指數施肥的苗高是常規施肥的116.7%,生物量是107.3%,但地徑生長量僅為常規施肥的78.3%;不同施氮水平處理對青岡櫟苗木的苗高、地徑、生物量影響顯著,隨著施肥水平的提高,苗木的苗高、生物量隨之增加,且錶現齣顯著性差異,但地徑的差異未達到顯著水平。今後應擴大施肥量的研究範圍,以便在最閤適的施肥量下比較指數施肥與常規施肥的差異。
이1년생청강력파충묘위연구대상,채용상규시비화지수시비방법,연구불동시비방법대청강력묘묘고、지경、생물량등지표적영향。결과표명:재상동시비량하,지수시비여상규시비대묘목생장영향차이불대,지수시비적묘고시상규시비적116.7%,생물량시107.3%,단지경생장량부위상규시비적78.3%;불동시담수평처리대청강력묘목적묘고、지경、생물량영향현저,수착시비수평적제고,묘목적묘고、생물량수지증가,차표현출현저성차이,단지경적차이미체도현저수평。금후응확대시비량적연구범위,이편재최합괄적시비량하비교지수시비여상규시비적차이。
The influence of normal and exponential N -fertilization methods on the height,ground diameter and biomass of one-year Cyclobalanopsis glauca seedlings was studied.The results showed that there was little difference of seedlings height and ground diameter between two methods at same level of N -fertilizer,and the seedling height and biomass of exponential fertilization treatment were 1 16.7%,and 107.3%to that of normal fer-tilization treatment.However,their ground diameter was only 78.3% to that of normal method.Furthermore,the seedlings height,ground diameter and biomass increased with the increase of N-fertilizer use,and showed a sig-nificant difference on seedlings height and biomass,but no significant difference existed in the ground diameter.In future,the N-fertilizer amounts should be enlarged research to confirm the suitable level and the difference of fer-tilization at normal and exponential method.