Biomassa, kandungan klorofil dan nitrogen daun dua varietas cabai (capsium annum L) pada berbagai perlakuan pemupukan

Abstract

An effort to fulfill nutrient elements on chilly crops can be done through fertilization. The fullfilment of nutrient element by giving organic and chemical fertilizers or the combination of both; either in the form of solid or liqufied fertilizers, on chilly crops can result as physiological response in the form of biomass, chlorophill and nitrogen content on chilly leaves. This research aims to know the influence of various feirtilizing on biomass, chlorophyll and nitrogen content on chilly leaves 'sakti' and 'fantastic'. The research is done in Gatak village, Karangnongko subdistrict, Klaten regency; from September 2006 till March 2007. The research design is factorial design using complete factorial design using complete block of 2 (two ) factors that is chilly varieties and fertilizing treatment. Chilly varieties used in this research are big chilly of 'fantastic' variety and curly chilly of 'sakti' variety. Meanwhile the fertilizing treatment used in this research include without using fertilizer (P 1); Using organic fertilizer 2 kilograms/each plant (P 2); Using organic fertilizer 1 kilogram/each plant + chemical fertilizer (ZA, SP-36, K Cl.= 2:1:1) + pour down NPK Mutiara (P 3); and Organic fertilizer 1 Kilogram/each plant + Chemical Fertilizer (SP 36 : K Cl = 1 : 1) + pour down Liquid Organic Fertilizer Bathari Sri (P 4). When harvest comes (the wet and the dried weight and the fruit crops of each plant ), the chlorophyll content are measured.The measurement of the wet plant uses a pair of scales. The measurement of chlorophyll content is based on Harborne method (1987), while the nitrogen content measurement uses Kjeldal method. Data Analyzes Technique uses Variant Analyzis followed by DMRT test (Duncan's Multi Range Test). The research output shows that various fertilizing treatment has influenced on the wet and dried weight and wet crops weight of each 'Fantastic' chilly plant. Organic + Chemical fertilizer treatment (SP- 36 : K Cl = 1 : 1) + pouring down POC Bathari Sri resulted the best weight of dried plant and the crops weight. Various fertilizing treatment influences on the increases chlorophyll content a of 'Fantastic' chilly; but it does not influence on chlorophyll content b and the total chlorophyll. The highest chlorophyll content a can be seen on the fertilizing uses organic + chemical fertilizer (ZA : SP-36 : K Cl = 2:1:1) + pouring down NPK Mutiara. Various fertilizing treament which influences on the plant wet weight does not influence the dried weight and the crops wet weight for each plant.Fertilizing treatment uses organic + chemical fertilizer (SP- 36 : K Cl = 1 : 1) + pouring down POC 'Bathari Sri' has the best weight of wet plant and fruit. Various fertilizing treatments influence on th increase of chlorophyll content a and total chlorophyll of chilly plant 'Sakti', does not influence on the chlorophyll content b. The highest chloropile content a and the total chloropill can be seen on the fertilizing treatment Using organic + chemical fertilizer (ZA : SP- 36 : K Cl = 2:1:1) + pouring down NPK Mutiara. Various fertilizing treatment does not influence on the increase of the total nitrogen content on the leaves of 'Fantastic' and 'Sakti' chilly. Fertilizing treatment using organic + chemical fertilizer (ZA : SP-36 : K Cl = 2:1:1) + pouring down NPK Mutiara does not significantly different on the treatment using organic + chemical fertilizer (SP- 36 : K Cl = 1 : 1) + pouring down POC Bathari Sri from the biomass side, chlorophyll and nitrogen content on the leaves of 'Fantastic' chilly, moreover fertilizing treatment using organic + chemical fertilizer (SP- 36 : K Cl = 1 : 1) + pouring down POC Bathari Sri has better condition from the three aspects. The researcher recommends fertilizing with the formulae organic fertilizer + chemical fertilizer (SP 36 : K Cl = 1 : 1) + pouring down POC Bathari Sri as a new alternative in planting chilly which is economical and environment friendly. Key words : Biomass, chlorophyll content, nitrogen content, chilly crops