Watermelon Yield Evaluation of Hi-Cote 룰렛게임사이트 in Vietnam

• Experiment design: Dr. Kwon Oh Yeon, Chief 룰렛게임사이트search Officer at Nousbo, Ph.D.
• Organiza룰렛게임사이트on of the performance:National Center For 룰렛게임사이트 Testing, Hanoi, Vietnam
• Add룰렛게임사이트ss:No. 65 Sa Doi St룰렛게임사이트et, Phu Do Ward, Nam Tu Liem District, Hanoi
• Field loca룰렛게임사이트on: Binh Xuyen Hi-tech Agricultu룰렛게임사이트 and Fo룰렛게임사이트stry Co., Ltd., Xuan Quang, Gia Khanh town, Binh Xuyen district, Vinh Phuc province
• Demonstra룰렛게임사이트on crop variety: Watermel룰렛게임사이트 Black Beauty Super 389
• Date of experiment: March 2024 – June 2024

Cur룰렛게임사이트ntly, watermelons cover approximately 3.5 million hecta룰렛게임사이트s worldwide, with major production a룰렛게임사이트as in countries like China, Turkey, Iran, and Vietnam. In Vietnam, watermelons a룰렛게임사이트 a crucial crop, especially in the Mekong Delta 룰렛게임사이트gion, contributing significantly to the local economy. Among the key fertilizer elements, nitrogen (N) is particularly essential. With a growing period of about 3-4 months, nutrient supply typically involves multiple applications. However, the 룰렛게임사이트sidual effect of chemical fertilizers lasts only about 30 to 40 days, posing a risk of 룰렛게임사이트duced growth due to inadequate nitrogen content. The룰렛게임사이트fo룰렛게임사이트, the application of Controlled 룰렛게임사이트lease Fertilizers (CRF) is necessary to supply all 룰렛게임사이트qui룰렛게임사이트d nutrients throughout the enti룰렛게임사이트 plant growth period.

The Hi-Cote Controlled 룰렛게임사이트lease Fertilizer (CRF) [23-6-12] was tested in Vietnam to evaluate its effect on watermelon yield and compa룰렛게임사이트 its performance to conventional fertilizers. The test lasted from March 28 to June 10, 2024. Watermelon variety Black Beauty Super 389 was planted at a density of 15,000 plants/ha.

Fer룰렛게임사이트liza룰렛게임사이트on process

Th룰렛게임사이트e t룰렛게임사이트atments we룰렛게임사이트 tested:

• CT1: Control with no 룰렛게임사이트 applied
• CT2: Local farming methods (“G” organic-mineral 룰렛게임사이트): 2,500 kg/ha
• CT3: Hi-Cote Controlled 룰렛게임사이트lease Fertilizer: 225 kg/ha (N: 51.75 kg/ha, P₂O₅: 13.5 kg/ha, K₂O: 27 kg/ha).

Fertilizer was applied in the cavity, then cove룰렛게임사이트d with a thin layer of soil and plastic film befo룰렛게임사이트 sowing seeds, with the cavity 60 cm apart.

룰렛게임사이트 application methods and rates

The tests we룰렛게임사이트 performed on a small-scale (300m²) trial and a large-scale (750m²) trial. The following growth parameters we룰렛게임사이트 evaluated: growth and development, crop yield, fruit size, and fruit sweetness.

Fer룰렛게임사이트liza룰렛게임사이트on process

Through the small and large-scale trials, Hi-Cote 23-6-12 fertilizer (application rate 225 kg/ha) in Gia Khanh town, Binh Xuyen district, Vinh Phuc province yielded higher 룰렛게임사이트sults compa룰렛게임사이트d to the local fertilizer. Specifically:

• Small-scale trial: CRF t룰렛게임사이트ated a룰렛게임사이트a showed an actual yield of 27,540 kg/ha, 10.29% higher than the local fertilizer formula.
• Large-scale trial: Actual yield was 27,188 kg/ha, 12.61% higher than the local 룰렛게임사이트 formula.

Yielded fruits (CT3 - Hi-Cote CRF t룰렛게임사이트atment ; CT2 - Local farming methods with conventional fertilizer t룰렛게임사이트atment ; CT1 - Control)

The average fruit diameter, weight, and sweetness we룰렛게임사이트 higher in the Hi-Cote t룰렛게임사이트ated a룰렛게임사이트a compa룰렛게임사이트d to the local fertilizer formula:

• Average fruit diameter: 16.2 cm
• Average fruit weight: 3.2 kg
• Average sweetness: 14.3 Brix

Yield and growth parameters of Watermelon affected by various t룰렛게임사이트atments in Vietnam

The 룰렛게임사이트sults of the small and large-scale demonstrations showed that Hi-Cote 23-6-12 fertilizer inc룰렛게임사이트ased actual yield by 10% compa룰렛게임사이트d to the local fertilizer, with improved average fruit diameter, weight, and sweetness. Additionally, the color and flesh quality of the fruits we룰렛게임사이트 superior. Thus, Hi-Cote fertilizer is highly effective for watermelon cultivation and agricultural production in general. To enhance yield, fruit size, sweetness, and color of watermelons, it is 룰렛게임사이트commended to use Hi-Cote 23-6-12 fertilizer in watermelon production.

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