Application of liquid fertilizer as suplementary foliar spraying for green mustard Nft hydroponics farming

Green mustard is in very high demand in Malaysia. They are the second most cultivated crop in Malaysia. The increase in food demand due to a growing population, declining fertile land and COVID-19 pandemic poses one of the biggest challenges faced. NFT hydroponics is a new practice in producing vegetables in stacked layers. This system is a method that has long been used in developed countries to produce clean, quality vegetables and a lucrative income, especially for some types of high value vegetables. Therefore, an experiment was conducted to study the benefits of liquid fertilizer and additional foliar spraying for outdoor green mustard NFT hydroponics fanning. A total of 60 green mustard seedlings has been planted for planted in NFT hydroponic for field experimental. The study had implemented design in NFT hydroponic system using 3 types of treatment with 3 replication which is organic fertilizer, inorganic fertilizer and AB that have been used for this experiment. Data on plant height and leaf width has been taken 3 times a week while data for SPAD meter, EC meter, pH has been taken once a week. Fresh weight of green mustard was recorded after harvested. The data collected has been subjected to one-way ANOVA. Results of the experiment showed that treatment organic foliar spraying had produced the highest leaf width, weight and SPAD chlorophyll values compared to treatment inorganic and control treatment. In conclusion, organic foliar spraying is recommended for use in hydroponic NFT to obtain high quality of the vegetables.