Catfish water culture utility with water replace treatment for green mustard cultivation

Catfish were cultured in 15 fibreglass containers in two periods, two months and three months culture period consecutively without draining. Water in the container were replaced at rate of 0, 5, 10, 20, and 40 percent volume container per day. There were three replications for each treatment. During the second culture period the replaced water were used to water green mustard plant. The green mustard were harvested two times. Objectives of this research were to know effect of the replaced water on green mustard growth and water fertility. Results of this experiment indicated that 1. Green mustard production were highest when the water was from the least water replacement. 2. The highest green mustard production was 124 g/plant. Those production level was estimated to be equal with 82.8 percent from plants which were normality fertilized respectively. 3. The less water being replaced, was better its fertility for green mustard growth Penelitian dilakukan terhadap budidaya tanaman sawi, dengan sumber air yang berasal dari bak budidaya lele dumbo. Lele dumbo dipelihara dalam air pada 15 bak, pada periode 1 selama 2 bulan, dilanjutkan periode 2 selama 3 bulan. Air dalam bak mendapat perlakuan penggantian air sebanyak 0, 5, 10, 20 dan 40 persen volume/bak/hari. Masing-masing perlakuan mempunyai 3 ulangan. Air bak budidaya lele dumbo periode 2 dari masing-masing perlakuan ini digunakan sebagai sumber air untuk tanaman sawi. Tanaman sawi ditanam dan dipanen 2 kali. Penelitian ini mempunyai tujuan untuk mengetahui hasil tanaman sawi dan kesuburan air. Hasil penelitian menunjukkan bahwa: 1. Hasil panen tanaman sawi lebih tinggi pada tanaman yang diberi air dari bak budidaya lele dumbo dengan volume penggantian air yang lebih sedikit, 2. Hasil panen sawi yang paling tinggi mencapai 124,3 g/tanaman atau setara dengan 82,8 persen dari hasil tanaman yang diberi pupuk secara normal. 3. Kesuburan air untuk budidaya tanaman sawi lebih tinggi pada volume penggantian air bak yang lebih sedikit