CAJ | 학술논문

对杉木高世代优良种源子代4年生林分进行施肥试验，经2年生长期调查和分析。结果表明：A3、B3、C3处理对幼树高、胸径、冠幅生长的影响与对照比较均达到极显著差异水平，表现出良好的后续生长效应，B2、C2处理对胸径、冠幅生长保持良好持续效应，说明适当 N、P、K 配比能对个体的胸径生长有更好持续效果，其他处理的持续效应相对较弱，与对照比较不显著。采用尿素与复合肥按1∶2混合0．75 kg ／株施肥量的经济性状较好，2年生长期胸径生长量可高达5．2 cm、树高生长量达2．5 m，且对个体后续生长持续时间更长，可为杉木生产经营与低产林分提高生产量提供参考依据。
대삼목고세대우량충원자대4년생림분진행시비시험，경2년생장기조사화분석。결과표명：A3、B3、C3처리대유수고、흉경、관폭생장적영향여대조비교균체도겁현저차이수평，표현출량호적후속생장효응，B2、C2처리대흉경、관폭생장보지량호지속효응，설명괄당 N、P、K 배비능대개체적흉경생장유경호지속효과，기타처리적지속효응상대교약，여대조비교불현저。채용뇨소여복합비안1∶2혼합0．75 kg ／주시비량적경제성상교호，2년생장기흉경생장량가고체5．2 cm、수고생장량체2．5 m，차대개체후속생장지속시간경장，가위삼목생산경영여저산림분제고생산량제공삼고의거。
Fertilizer test was carried out on the progeny of 4-year-old advanced generation provenance of Cun-ninghamia lanceolata stand,and then investigated the growth status of 2-years-old growth stage.The results indica-ted that comparing with CK,A3、B3、C3 fertilizer treatment were highly significant promoted the growth of breast-di-ameter,tree height and crown diameter,showing well follow-up growth promotion effects.B2、C2 treatment had a good sustained effect on breast-diameter and crown diameter,indicating that a suitable ratio of N、P、K were sequen-tial improvement of the growth of breast diameter,while the effect of the other fertilizer treatments were not signifi-cant.When the ratio of carbamide and compound fertilizer was 1∶2 and fertilizing amount was 0.75 kg/plant,the economic character of Cunninghamia lanceolata was the best,such as,in the 2 years growing period,the breast-di-ameter and tree height increment reached up to 5.2 m and 2.5 m respectively,and the follow-up growth could be sustain longer.The results would provide a reference for the production management and low yield stands of Cun-ninghamia lanceolata to increase production.