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All Journal JTCST (Journal of Tropical Crop Science and Technology)
Aulia Zakia
Universitas Muhammadyah Malang
Agriculture, Biological Sciences & Forestry

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Seed Priming Used Coconut Water In Different Concentration And Soaked Periode To Increase Soybean Germination Anang Wibowo; Aulia Zakia; sufianto
Journal of Tropical Crop Science and Technology Vol. 3 No. 2 (2021): VOLUME 3, NO. 2, OCTOBER 2021
Publisher : Universitas Muhammadiyah Malang

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Soybean seeds are orthodox seeds that quickly deteriorate, especially if the storage environment conditions are less favorable (sub optimum). Soaking using coconut water can be done to overcome the deterioration of soybean seeds by utilizing vegetable waste. The purpose of this research was to study the effect of concentration and duration of coconut water soaking on the process of soybean seed germination. This research was conducted in January-February 2020, at the Agronomy Laboratory, Agrotechnology Study Program, Faculty of Agriculture-Livestock. The soybean used in the study was the Dena I variety. Factorial Completely Randomized Design (CRD) with 2 factors was used in this study. Factor 1 was coconut water concentration (K0 = 0% Coconut Water Concentration; K1 = 25% Coconut Water
The Effect Of The Administration Of Calcium Chloride (CaCl2) And Phosphoric Acid Fertilizer (H3PO4) On The Growth And Production Of Strawberry (Fragaria ananassa) Harun Rasyid; Aulia Zakia; Resty Mirza Triyuana
Journal of Tropical Crop Science and Technology Vol. 3 No. 1 (2021): VOLUME 3, NO. 1, MARCH 2021
Publisher : Universitas Muhammadiyah Malang

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Strawberry production in Indonesia has been on the rise in various regions, including Aceh, Riau, Jambi, DKI Jakarta, West Java, Central Java, East Java, and others. According to the Central Bureau of Statistics (2021), production fluctuated from 573.00 tons in 2019 to 559.00 tons in 2020, rebounding to 838.00 tons in 2021. Factors influencing production include land availability, proper fertilization methods, and planting media. Adequate fertilization, considering both dosage and frequency, plays a crucial role. The study, conducted at Balitjestro GreenHouse in Batu City, East Java, focused on the interaction between lime and fertilizer on strawberry plant growth and yield. Synthetic fertilizers, particularly phosphate fertilizers, are essential for plant growth. The research utilized a completely randomized design with two factors: CaCl2 lime (S) and phosphoric acid fertilizer (R), resulting in two treatment combinations (4x4). Each treatment, repeated three times, yielded 48 experimental units, with one plant per unit. Results indicated that the addition of CaCl2 lime and phosphoric acid fertilizer had a minimal impact on strawberry plant growth and production. Specific combinations, such as calcium chloride and phosphoric acid fertilizer with KCL 7.2 grams and urea 12.5 grams, did not significantly affect vegetative growth parameters like plant height and leaf count. However, these combinations did influence strawberry plant production. The study underscores the need for careful nutrient management to optimize strawberry production in Indonesia.
Testing The Effectiveness Of Biological Agents As Biofertilizers On The Growth Of Two Rice Varieties (Oryza sativa L.) In Screen House Rizki Nabil Gibran; Fatimah Nursandi; Aulia Zakia
Journal of Tropical Crop Science and Technology Vol. 3 No. 2 (2021): VOLUME 3, NO. 2, OCTOBER 2021
Publisher : Universitas Muhammadiyah Malang

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Rice (Oryza sativa L.) is one of the most important food commodities for human nutritional needs. The amount of rice consumption per capita per week in 2017 was 1,571 (BPS, 2018). Population growth over time has resulted in increased demand for rice in Indonesia. Therefore, the demand for rice by the Indonesian people is very high. The problem is that the demand for local rice in Indonesia is still low, so one way to meet the demand for rice in Indonesia is through imports. Utilization of water and land resources is one of the common challenges faced in realizing national food security (Fita et al., 2013). Low productivity of rice plants is generally caused by biological, physical, and chemical soil problems. One of the efforts to increase the productivity of rice plants is by utilizing biological resources such as biofertilizers.The objectives of this study were to determine the appropriate dose of biofertilizer that will affect the growth of rice plants, determine the combination of biofertilizer and application interval that affects the growth of rice plants, and determine the effect of biofertilizer application on 2 varieties of rice plants (Ciherang and IR 64). The design used in this study was a factorial complete randomized block design (RKLT) to determine the interaction and effect of each factor. Then DMRT (Duncan's test) was conducted to determine the best treatment. Based on the results of the study, it was found that the interaction between biofertilizer treatment and rice varieties had significant effects on almost all observed variables except stem diameter at 70 HST, number of clumps at 42 HST, number of productive tillers, and weight of planted seeds. The combination of biofertilizer treatment and rice variety had inconsistent effects on growth parameters and rice yield.
Co-Authors Anang Wibowo Fatimah Nursandi Harun Rasyid Resty Mirza Triyuana Rizki Nabil Gibran sufianto