On-farm trial of ramie under Davao [Philippines] condition
1991
Macarayan, O.B. (Fiber Industry Development Authority, Davao City (Philippines))
Statistical analysis results showed that the performance of the three ramie cultivars: Saikeiseishin, Formosa, and DES strain did not significantly respond to specific rates of nitrogen application and harvesting cycles except for the tensile strength of the fibers. Saikeiseishin variety fertilized at the rate of 140 kg nitrogen per hectare produced the strongest fibers. Results showed that nitrogen application significantly influenced the growth, yield and quality of ramie. Significant interaction was noticed between nitrogen application and harvesting cycle in the tensile strength of the ramie fibers. Main factor results showed that 40 and 60 days harvesting cycle do not significantly differ in the length and base diameter of harvested stalks, fresh weight of harvested stalks with leaves and flowers, unbrushed and brushed fiber yield and tensile strength of fiber. Based on these results, harvesting ramie at 40 days cycle is significantly acceptable provided that the basic growth requirements of the crops are present. Application of 70 kg nitrogen per hectare per cropping season renders a considerable high return on investment for both 40 and 60 days harvesting cycles regardless of the ramie cultivar used
显示更多 [+] 显示较少 [-]