1. THE GROWTH AND YIELD OF COFFEE ARABICA IN SHADE CONDITIONS ON DIFFERENT TREATMENT OF PRUNING AND FERTILIZING
- Author
-
Siahaan A.S.A., Harahap E.M., Hanum C., and Karim A.
- Subjects
growth ,production ,coffee ,shading ,pruning ,fertilization ,Agriculture (General) ,S1-972 - Abstract
Coffee plants are C3 plant groups, with characteristic of low photosynthetic efficiency, which is due to the occurrence of photorespiration. In simple agroforestry systems, legumes are commonly used as shade trees. In addition, pruning and fertilizing are also very important cultivation techniques in coffee plantation business. This study was aimed to to obtain the maximum potential of coffee production at a certain height in Humbahas Regency with a package treatment of pruning, fertilizing and shade technology. Plant experiments were carried out at an elevation zone of 1300-1400 meters above sea level (m asl) which was designed in the form of Splits plot design. There are three factors tested, the main plot is shade with a level of non-shading (N0) and shading (N1); the main subplots are pruning, namely pruning with the farmer system (P1) and pruning recommendations (P2); while the subplots are fertilization methods consisting of: farmers' fertilizing level (O0), giving organic fertilizer from coffee pulp at a level of 10 kg / tree (O1), giving organic fertilizer from manure at a level of 10 kg / tree (O2), giving phosphate fertilizer (SP36) 150 g/ tree. The shading as the main plot only gives a significant effect on dry weight parameters of the seeds. However, the interaction effect which is known to given significant effect is the Shading-Pruning-Fertilization, which produces a real effect on all parameters. In the zone of elevation zones 1300-1400 m asl the combination of shading, pruned recommended and 10 kg / tree manure (N1P2O2) is the best treatment.
- Published
- 2020
- Full Text
- View/download PDF