00476nam a2200121Ia 4500008004100000100002500041245016500066260006400231300001000295650001700305700001300322700001900335220216s9999    xx            000 0 und d  aWaidyanatha U P de S 0aZero-grzed pasture under immature Hevea rubber : Improved productivity of Panicum maximum and P. maximum + Pureria phaseoloides and their competition with Hevea  bJournal of the Rubber Research Institute of Sri Lankac1982  a17-24  aHevea rubber  aStauss R  aWijesinghe D S