A Study on Cultivation Techniques of Daemonorops margaritae

Based on the discussion of the bioecological characteristics of D.margaritae,in this paper,the cultivation techniques including seedling raising,plantation establishment and management,harvest,and economic benefit of the plantation are presented.The region located to the south of 23°30'N with an annual mean temperature 20～24.5℃,absolute minimum temperature-2.8℃,15℃ active accumulated temperature5800℃/year,and annual rainfall l200 mm,is suitable for cultivation of D.margaritae.The appropriate site should be sheltered(50% in relative light intensity),moist soil with the content of organic matter in top soil 2%,total N0.1%,total P0.01%,and pH 4.4～6.7.The seeds can be stored for 6 months without losing their vitality at the controlled condition,The integrated quality indexes are listed below: qualified seedling(1 year old)should have more than 4 leaves and over 25 cm in height;superior seedling more than 5 leaves and over 35 cm in height;number of stems in each clump should be more than l3 in 8 years old plantation;and yield of l2 years old plantation reaches 7 000 kg/hm2.Moreover,the standard sets for the fast-growing rattan plantation is that the average number of stems per clump50,total length of stems100 m per clump,and yield l0 000 kg/hm2.This paper also deals with the technical maturity, harvest rotation,management methods,and evaluation of economic benefit of rattan plantation.The results showed that in a 25-year management period of the rattan plantation,the output value is greater than l50000 yuan/hm2,net income130 000 yuan/hm2, NPV16 000 yuan/hm2,and investment recovery period11 years.