PERANAN POHON PELINDUNG DALAM MENENTUKAN PRODUKTIVITAS KOPI
| Main Authors: | Rusdi Evizal, . Tohari, Irfan Dwija Prijambada, Jaka Widada |
|---|---|
| Format: | Article application/pdf eJournal |
| Bahasa: | eng |
| Terbitan: |
JURNAL AGROTROPIKA
, 2013
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| Subjects: | |
| Online Access: |
http://journal.unila.ac.id/index.php/agrotropika/article/view/689 |
Daftar Isi:
- THE ROLE OF SHADE TREES IN DETERMINING COFFEE YIELD. Shade trees of legume in particularhave ecological function such as litter fall production, N fixation, nutrient acquisition from deep soil,and shade provision. Shade trees may influence coffee bean yield both increasing and decreasing the yield.To evaluate the role of shade trees in determining coffee yield, the experimental plots were constructed atbenchmark site of Conservation and Sustainable Management of Below-Ground Biodiversity (CSM-BGBD),in Sumberjaya Subdistrict, West Lampung, Indonesia. Shade trees of Coffea canephora agro-ecosystems tobe examined were Gliricidae sepium, Erythrina sububrams, Michelia champaca, and no shade. The resultsshowed that agro-ecosystem shaded with Gliricidae sepium, Erythrina sububrams, Michelia champaca gavepositive return of N, P, K. Total N from litter fall of shade trees and level of shading had quadratic regressionwith coffee yield. Shading on July significantly determined coffee yield with negative coefficient.