Pemanfaatan Media Residu Dua Periode Tanam Dari Aplikasi Berbagai Macam Pupuk Organik Pada Pertumbuhan Tanaman Kailan (Brassica oleraceae L.Var. Acephala)

Abstract

Kailan (Brassica oleraceae L. Var. Acephala) is a vegetable that is still one brother to the cabbage plant or which has the Latin name (Brassica oleracea). Fresh kailan contains a lot of protein, fat, calcium, vitamin A, vitamin B and vitamin C. To get good yields of kailan, it is necessary to add fertilizer in the cultivation process, both organic and inorganic fertilizers. This study aims to determine the effect of residues of various organic fertilizers on the growth of your plants in two planting periods. The research design was prepared using a simple randomized block design, the study consisted of two planting periods where each period had the same stages, both planting periods used the rest of the previous research media where the previous research treatments were as follows M₀: Control, M₁: NPK residue, M₂ : Residue of conventional compost, M₃ : Residue of cow dung, M₄ : Residue of chicken manure, M₅ : Residue of solid vermicompost, M6 : Residue of nano vermicompost. In the planting period to one plant height, in general, the M₁ (NPK residue) treatment showed a good response with a decrease percentage of 38.60%. In the variable number of leaves in general, the M₃ (cow dung residue) treatment had a good response with a decrease in the percentage of 10.83%. In the leaf area variable, in general, the M₃ (cow dung residue) treatment showed a good response with a decrease percentage of 22.11%. Meanwhile, the M₆ (Nano Vermicompost Residual) treatment showed a good response to the chlorophyll index parameter with a percentage decrease of 11.67%. In the second planting period, the variable height of the treatment plant M₃ (cow dung residue) tended to give a good response with a percentage increase of 8.15% (an increase). In the variable number of leaves treatment M₄ (chicken manure residue) showed a good response with a percentage decrease of 3.70%. In general, the leaf area variable for M₃ (cow dung residue) treatment still showed a good response. While the M₃ (cow dung residue) treatment showed a good response to the chlorophyll index parameter, the value was higher in the second period with a difference of 0.2. The results of this study suggest kailan cultivation using fertilizer, nanovermicompost, chicken manure, and cow manure because the organic fertilizer is slow release and can be used for the next several planting periods.

Keywords: Kailan, fertilizer residue effect, growth