Mustard greens (Brassica juncea L.) is one of the horticultural crops of vegeTable species that are utilized in young leaves. Utilization of seaweed as biofertilizer can be an alternative solution to environmental problems caused by mineral fertilizers because they are safe for soil and plant microbes. The research aimed to determine the effect of extract of seaweeds growing Central Sulawesi on growth and yield of mustard greens. This study consisted of six treatments: P0 = control, P1 = NPK fertilizer, P2 = seaweed extract Caulerpa sp., P3 = seaweed extract Sargassum sp., P4 = seaweed extract Kappaphycus alvarezii, P5 = seaweed extract Ulva sp., Plant height, number of leaves, leaf area, fresh weight of plant, dry weight of plant, and chlorophyll content were measured during the growing period and at harvest. The results showed that the seaweed extracts significantly affected on growth and yield of mustard greens plants. The most effective seaweed extracts for mustard greens plants was from Ulva sp. which produced average leave fresh weight 772.79 g and 10.40 numbers of leaves.
Shallot plant is often used as a flavor enhancer and appetite enhancer food. Research on shallotcrop has been done. Application of seaweedsgive a different effect on increasing the productivity and growth of shallots. This study aims to determine the effect of applying different types of seaweed on growth and yield of shallot variety Lembah Palu. This research was conducted at the Green House of Faculty of Agriculture, University of Tadulako from March to May 2016. The study conducted using a randomized block design (RBD). The treatments: B0 = control, B1 = NPK 0.2 g / pot, B2 = (Cauelerpa sp) 100 ml/pot, B3 = (Sargassum sp) 100 ml/pot, B4 = (Eucheuma cottonii) 100 ml /pot, B5 = Sea lettuce (Ulva sp) 100 ml/pot. there are six treatments, each treatment was replicated four times, so there are 24 experimental units. The results indicatedthat the application of various types of seaweed significant effect on plant height, fresh weight of the plants, the fresh weight of tuber and diameter of the bulb.
Eggplant (Solanum melongena L.) is one of the horticultural vegetables that is widely distributed in Indonesia. It is just like other vegetables, and eggplant offers a variety of health benefits. Seaweed is one of a group of marine plants that containing many important minerals. Seaweed also contains a growth-promoting hormone. This research aims to study the effect of application of various types of local seaweed extracts on growth and yield of eggplant. The study was conducted using Randomized Block Design (RBD) which consist of 6 treatments: P0 = without fertilizer (control), P1 = fertilizer NPK, P2 = Seaweed Cauelerpa sp, P3 = Seaweed Sargassum sp, P4 = Seaweed Kappaphycus alvarezii, P5 = Seaweed Ulva sp. Each treatment is repeated 4 times to obtain 24 units of the experiment. The results of this research showed that the application of seaweed extracts significantly affected on growth and yield of eggplant plants (plant height, number of leaves, leaf area, fresh weight of plant, dry weight of plant, fruit fresh weight, fruit dry weight and chlorophyll content but did not show significant on first flowering appear, roots fresh weight and root dry weight. All seaweeds show a potential to replace the use of NPK in improving the growth and yield of eggplant.
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