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The demand for pak choi plants always increases over time. Hydroponics is one technique for the quick cultivation of pak choi. The advantages of hydroponics are its easy setup anywhere that is healthy and clean, requiring minimal areas and still having optimal production. Usually, hydroponics uses AB mix nutrients from various brands on the market. However, this research used NPK 16:16:16 and NASA liquid organic fertilizer to find alternative nutrients to increase the growth and production of pak choi by formulating an effective combination of nutrients and growing media using the nutrient film technique (NFT) system. The research commenced at a greenhouse of the Universitas Teuku Umar, Aceh, Indonesia. The split-plot design employed had nutrients for the main plot, N1 = AB mix Goodplant, N2 = NPK fertilizer 16:16:16, and N3 = NASA liquid organic fertilizer; and the growing media in the subplots, M1 = husk charcoal, M2 = rockwool, M3 = cocopeat, and M4 = sponge. The studied parameters were the plant's fresh and dry weights and chlorophyll a and b. The result showed that nutrition, growing media, and their interaction significantly affected the fresh and dry weights of the pak choi plants. The best combination of nutrients and growing media was AB mix nutrition and cocopeat (N1M3), which showed remarkable performance in increasing the growth and physiological traits of pak choi plants. [ABSTRACT FROM AUTHOR]

Sweet corn is one of the essential food crops in Indonesia because of its many benefits, such as, being a source of carbohydrates, oil, flour, animal feed, and others. Corn demand increases yearly, needing a large land area to meet its requirements. However, planting maize during the dry season or low rainfall faces more challenges. Therefore, using drip irrigation is a solution to ensure corn growth and sustained optimal production. The presented study aimed to determine the effects of drip irrigation on the production of two varieties of sweet corn (Zea mays saccharata Sturt) and began from February to May 2021 at the Faculty of Agriculture, Universitas Teuku Umar, Meulaboh, West Aceh, Indonesia. The study used a randomized design (split-plot) each for two irrigation levels: without drip irrigation (T0) and drip irrigation (T1) in main plots on two sweet corn varieties, Bonanza and Paragon. The parameters observed were cob diameter with cornhusk (mm), cob diameter without cornhusk (mm), cob length with cornhusk (cm), cob length without cornhusk (cm), cob weight with cornhusk (g), and cob weight without cornhusk (g). Analysis of variance showed that the drip irrigation treatments had no significant effect on all the recorded parameters. However, the varieties had a highly relevant impact on the cob diameter and length and considerably influenced the cob weight. Then again, the sweet corn varieties showed nonsignificant differences for all other variables. [ABSTRACT FROM AUTHOR]