全周期胶园温光特性及其林下间作作物产量表现

    Temperature and light performace and yield production of intercropped crops in rubber plantation with paired row plantion system

    • 摘要: 天然橡胶是我国四大战略物资之一,因近年胶价下跌,单一栽培模式的植胶业受冲击严重。通过胶园林下间作稳定和提高胶园产值是重要的应对途径之一,对全周期模式胶园的温光特性和2014—2016年10 种不同作物在全周期模式胶园林下间作的产量表现进行研究。结果表明,全周期模式胶园林下光照强度相对常规胶园有较大改善,夏季(7 月)全周期胶园间作区中间位置和间作区全天光照强度平均值均显著高于常规胶园,分别为裸地对照的72.3% 和50%,而常规胶园光照强度为裸地对照的11%。全周期胶园/ 蔬菜间作模式中,胭脂萝卜、豌豆、生姜能正常生长,且产量优势明显;全周期胶园/ 粮食作物间作模式以凉薯表现最优,产量为12.7 t/hm2,与裸地对照单作凉薯的产量无显著差异;全周期胶园/ 中药材间作模式中,玫瑰茄植株能正常生长发育,新鲜花萼产量与裸地对照比降低57%,花萼总黄酮含量降低28.2%。全周期胶园从一定程度上缓解了常规胶园存在的光资源竞争问题,可基本满足一些作物的生长发育需求。

       

      Abstract: Natural rubber is an important strategic raw material for manufacturing a wide variety of industrial products. Intercropping is one of the most effective and sustainable way to increase the production per unit area through the effective use of resources in rubber plantation. Research on temperature-light characteristics and crop production intercropped in rubber plantation with paired row plantion system were carried out between 2014-2016. Results showed that light intensity of rubber plantation with paired row plantion system was much higher than that fo normal rubber plantation in summer( July). The light intensity at the middle sits of rubber plantation with paired row plantion system was 70% of the value of CK( bare land). The average light intensity of rubber plantation with paired row plantion system was 50% of the value of CK( bare land). The average light intensity of normal rubber plantation was 11% of the value of CK( bare land). In the pattern of rubber tree/vegetables,red radish ,pea and ginger showed normal growth and development. In the patter of rubber tree/ grain crops, the yield of intercropped yam bean( 12.7 t/hm2) had no significant difference with monocultural yam bean( 13.5 t/hm2). The Fresh calyx yield and flavone content of intercropped roselle were significantly decreased by 57% and 28.2% compared with that of the control,respectively. This study provides a theoretical basis and technical support for the intercropping in rubber plantation with paired row plantion system.

       

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