期刊名称：E-Jurnal Ekonomi dan Bisnis Universitas Udayana
出版年度：2013
卷号：1
期号：1
语种：English
出版社：E-Jurnal Ekonomi dan Bisnis Universitas Udayana
摘要：This research was conducted to determine the effect level of NPK fertilizer added with compost fertilizer on soil psychochemical properties, the quality and the productivity of Granola G4 potatoes. This study lesed Split plot with : twosub plot, and four level doses NPK fertilizer. Each level of NPK fertilizing was repeated three times. NPK fertilizing levelsare: 160 kg / ha (P1), 180 kg / ha (P2), 200 kg / ha (P3), and 220 kg / ha (P4), with chicken manure from compost. Dose ofcompost was 20 tonnes per hectare. Variable of this research were : soil structure, soil water holding capacity, permanentwilting point of crops, crops water availability, pH, soil organic matter, productivity and quality of petetues. Availability ofwater crops was between 21 – 24 % wet basis (w.b). Each level of NPK fertilization was able to change pH from 6.5 to6.9. Content of C-organic content at early potatoes planting was 4.0 – 4.1 % and after potatoes harvesting the C-organiccontent was 4.7 – 6.4 %. The potatoes productivity at NPK fertilization 200 tones/ha and 220 tones/ha was 30 tones/ha. Thenumber of tubers can be used as seed was 38.4% and 36.5% with the number of tubers rot was 3.8 and 3.6%
关键词：Potatoes; soil phycochemical; doses; productivity and quality.
