SEAS (Sustainable Environment Agricultural Science)

Effect of Fertilizer Dosage and Watering Frequency on the Growth of Mucuna breacteata

Heri Setyawan — 2024-10-29

The Mucuna bracteata plant has various benefits in the world of oil palm plantations. Apart from being a ground cover plant, Mucuna bracteta is also a source of organic matter in oil palm plantations. The availability of less arable land makes the need to develop Mucuna bracteata cultivation as a benchmark in anticipation of the impact of the increasing availability of arable land in oil palm plantations. A study has been carried out to determine the effect of P fertilizer dose and watering frequency on the growth of Mucuna breacteata, which has been carried out in the Education and Research Garden (KP-2) Akademi Komunitas Perkebunan Yogyakarta which is located in Papringan, Depok, Sleman, Yogyakarta.

This study uses a factorial design consisting of two factors arranged in a complete random design. The first factor is the application of various doses of P fertilizer consisting of 3 levels, namely a dose of 1.5 g/plant, a dose of 3.0 g/plant, and a dose of 4.5 g/plant. The second factor is the frequency of watering which consists of 2 levels, namely 1 time a day and 1 time 2 times a day. The data of the research results were analyzed with various fingerprints at the real level of 5%. If there is a real difference, it will be continued with a test Duncan Multiple Range Test (DMRT) real level 5%.

The results of the study showed that the application of P fertilizer with doses of 1.5 g, 3.0 g, and 4.5 g as well as the frequency of watering 1 time a day and 1 time 2 times a day, showed that the interaction of the two treatments had a real effect on the parameters of plant height, number of leaves, fresh weight of crown, and dry weight of crown. Meanwhile, the parameters of root fresh weight, root dry weight, and total number of root nodules showed no real interaction. However, the interaction of the two treatments has an effect on each treatment alone or separately.

Evaluation of Land Suitability for Coconut Plants in Airmadidi District, North Minahasa Regency, North Sulawesi

Rahadian Adi Prasetyo — 2024-10-29

Airmadidi District is one of the coconut producing areas in North Minahasa Regency. Coconut plants are important for the community because each part has economic value. The purpose of the study was to identify the actual and potential land suitability classes for coconut plants in Airmadidi District. The research method used was the survey method. Determination of land suitability classes used a matching method between land characteristics and land suitability criteria. The results showed that the actual land suitability class in the Airmadidi District land unit was quite suitable (S2) and marginally suitable (S3) with limiting factors of water availability (wa) in the form of rainfall, nutrient retention (nr) in the form of Soil CEC and nutrient availability (na) in the form of N-Total, P₂O₅ and K₂O. The potential land suitability class in the Airmadidi District land unit was very suitable (S1) and quite suitable (2) with limiting factors of available nutrients (na) in the form of N-Total, P₂O₅ and K₂O.

Sensory Properties and Antioxidant Activity of Siamese Orange (Citrus nobilis L.) Fruit Leather

Kunti Dewi Dhasi Aryawan — 2024-11-12

Siamese orange (Citrus nobilis L.) was a type of fruit widely cultivated and produced in Bali, but its utilization was not optimal. Siamese oranges were usually used for religious ceremonies, and if excess, they would lead to waste. Siamese oranges contain vitamin C, phenols, flavonoids, and limonene as antioxidants. In addition, peel contains 30% pectin. The combination of Siamese orange fruit and peels into fruit leather with the Zero waste concept (utilizing all parts of the Siamese fruit has great potential as a functional food product). Functional food is a product that is not only filled with nutrients but also has health benefits. Fruit leather is a processed product from fruit skin that has plastic characteristics obtained from pectin content of ingredients. This study aimed to determine the right concentration of fruit peel puree addition to produce siamese fruit leather with the best characteristics and its potential as a functional food. Randomized Block Design (RGD) was used with six treatment levels in addition to siamese peel puree concentration (0%; 5%; 10%; 15%; 20%; dan 25%), repeated three times to obtain 18 experimental units. Observed variables included Vitamin C by UV-Vis spectrophotometry, antioxidant activity by DPPH, and moisture content by gravimetric and sensory characteristics on hedonic test of colour, taste, aroma, texture, and overall acceptance. Data obtained were analyzed using analysis of variance, followed by Tukey test. According to raw materials, the assumption of Siamese fruit leather with the right concentration of Siamese peel puree has potential as a functional food.

The Effect of Time Application from Nasa Liquid Organic Fertilizer on The Generative Phase of Sponge Plants (Luffa acutangula L.)

Ronny Mulyawan — 2024-11-12

The study was to determine the effect of the time of application from NASA liquid organic fertilizer on the generative phase of sponge plants (gambas). In cultivating plants, there are several obstacles faced such as less fertile soil and fertilization that is not on target, causing production results to be not optimal. One way that can be done to increase crop production is using NASA's POC. This research was carried out at Lahan Percobaan of the Faculty of Agriculture, Lambung Mangkurat University, Banjarbaru. The research method used was a study using a one-factor Randomized Group Design (RGD) with 4 treatments and 5 tests so that 20 experimental units with a NASA LOF concentration of 2 ml.l-1 water were obtained. The treatment to be applied is: P0 = without giving NASA LOF, P1 = giving NASA LOF (application at 2 WAP), P2 = giving NASA LOF (application at age 2 and 4 WAP), P3 = giving NASA LOF (application at age 2, 4 and 6 WAP). The results showed that the timing of NASA's LOF It has no effect on the parameters of fruit length, fruit diameter, fruit weight and number of fruits of sponge plants, but has a noticeable effect on the parameters of the number of male flowers and the number of female flowers of sponge plants. NASA's POC application with a time interval of 3 times (P3) showed the best results in the parameters of the number of male flowers as many as (9.32) flower florets and (3.28) florets the number of female flowers.

Growth Performance of Two Cowpea Varieties with Application of Water Hyacinth Root Extract as Seed Priming

Hikma Ellya — 2024-11-12

Nagara cowpea seeds are susceptible to deterioration during storage, thus seed viability performance must be improved with various techniques including seed invigoration. Organic priming is an invigoration technique that can be obtained from several plants that contain growth regulators. Water hyacinth is an aquatic plant in swampy areas that can be used as a raw material for organic priming. This study aims to determine the response and the best concentration of water hyacinth root extract on the growth of two cowpea varieties. This study used a completely randomized design (CRD) split plot with the main factor being cowpea varieties (G) consisting of 2 levels, G1 (Nagara cowpea) and G2 (KT9 cowpea). The subplot factor is water hyacinth root concentration (C) consisting of 4 levels C0 (without priming), C1 2.5%, C2 5.0%, C3 7.5%. The results showed that the application of water hyacinth root extract affected the growth of two cowpea varieties on plant height, number of branches and number of leaves. The highest plant height was in KT9 cowpea soaked with 5% concentration of root extract. The highest number of branches in Nagara cowpea soaked in water hyacinth root extract at concentration 2.5%. The highest number of leaves in cowpea KT9 soaked in water hyacinth root extract at concentration 7.5%.

Application Of Nutrients In The Type Of Growing Media To The Yield Of Mustard Plants (Brasscia Juncea L.) Hydroponically Wick System

I Gusti Ngurah Aris Cakra Satria Wibawa — 2024-11-12

The purpose of this study was to determine the effect of AB mix nutrient mixture with tofu pulp POC and type of growing media on the yield of mustard plants (Brassica juncea L.) hydroponically wick. This research was conducted from February to May 2023 in Kesiman Pentilan Village, East Denpasar, Denpasar City. The altitude is 20 meters above sea level, with a rainfall of 2,757 mm, the average temperature is 20-300C. This type of research is an experimental study using factorial Group Randomized Design (RAK) consisting of two factors. The first factor is a mixture of AB mix and liquid organic fertilizer (POC) which consists of 3 levels. The second factor is the type of media consisting of 3 levels. The first factor of AB Mix nutrition with tofu pulp POC consists of 3 levels, namely: (K1 AB mix + 20cc POC), K2 (AB mix + 30cc POC, (K3 AB mix + 40cc POC). Factors of both types of media consist of 3 levels, namely: M1 (rockwool), M2 (husk charcoal), M3 (cocopeat). So that 9 combination treatments were repeated 3 times so that there were 27 plants. Interaction between the dose of tofu pulp POC + AB mix with the type of growing media (KÃ—M); Tofu pulp POC dose treatment + AB mix (K) and type of growing medium (M) had no real effect (Pâ‰¥0.05) on all observed variables. The absence of interaction indicates that the combined treatment of nutrients and media types has not been able to affect plant physiological processes. Although the two treatment factors are not real for all variables observed, emperically from this study shows that the nutritional treatment of AB mix + 20cc POC tofu pulp with rockwool planting media. Shows the highest economic yield weight, namely 17.378 grams and 17.711 grams.