CAJ | 학술논문

为探索高割龄橡胶树高产栽培技术，采用相关、通径及线性回归分析，对海南省大丰农场23块21、23 a高割龄PR107胶园及其9个高产群体主要经济性状与产量进行统计分析。研究表明，在各主要经济性状中，对产量影响最大的是每公顷有效割株数，其次是年均割次株产干胶量，再之是年割胶刀数。生产中要以每公顷有效割株数为中心来合理安排割胶强度，对年割胶刀数进行合理的促控，保持适宜的高产群体，开割中后期注意刺激剂的施用，以既增加年均每割次株产干胶量，又不影响在割率才有利于高产。运用微机对三性状产量效应数学模型进行仿真模拟，得出高割龄PR107年产量≥1500 kg/hm2的栽培措施为：年均每割次株产干胶量79．82～85．26 g，年割胶刀数60．84～61．19，每公顷有效割株数393．52～422．37株。三因子取平均值时年单产预估为1988．10 kg/hm2。
위탐색고할령상효수고산재배기술，채용상관、통경급선성회귀분석，대해남성대봉농장23괴21、23 a고할령PR107효완급기9개고산군체주요경제성상여산량진행통계분석。연구표명，재각주요경제성상중，대산량영향최대적시매공경유효할주수，기차시년균할차주산간효량，재지시년할효도수。생산중요이매공경유효할주수위중심래합리안배할효강도，대년할효도수진행합리적촉공，보지괄의적고산군체，개할중후기주의자격제적시용，이기증가년균매할차주산간효량，우불영향재할솔재유리우고산。운용미궤대삼성상산량효응수학모형진행방진모의，득출고할령PR107년산량≥1500 kg/hm2적재배조시위：년균매할차주산간효량79．82～85．26 g，년할효도수60．84～61．19，매공경유효할주수393．52～422．37주。삼인자취평균치시년단산예고위1988．10 kg/hm2。
To explore high-yielding cultural techniques of Hevea brasiliensis at older tapping age,the yield and its main economic characters of the PR107 clone population at older tapping age including 21 and 23 years old in 23 Hevea plantations,of which 9 were high-yield Hevea plantations, were analyzed with statistical meth-ods ( relation,path coefficient and multiple -liner regression analysis) .The results showed that the factor with the greatest effect on yield was the number of tappable trees per hectare,mean dry rubber yield per tree per tapping was the second,the number of tapping per year was the thirdT.he tapping intensity should be set rea -sonably centering attention on the number of tappable trees per hectare in natural rubber production,the num-ber of tapping per year should be promoted and controlled reasonably ,suitable high yield population should be maintained,attention should also be paid to the application of irritant in the middle and later stages of tapping, which increases mean dry rubber yield per tree per tapping and does not affect tapping tree percentage, and this is beneficial to yield.The mathematical models of three main yield traits were simulated with computer soft-ware,the conclusion was that the optimized cultivation conditions for the annual yield greater than or equal to 1 500 kg/hm2 of PR107 at older tapping age were 79.82~85.26 g of mean dry rubber yield per tree per tap-ping,60.84~61.19 tapping per year of tapping intensity and 393.52~422.37 plants of the number of tappable trees per hectare.The annual yield was estimated to be about 1 988.10 kg/hm2 when the average values were obtained from the three individual factors.