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RESPON PERTUMBUHAN DAN HASIL TANAMAN JAGUNG MANIS (Zea mays-saccharata Sturt.) PADA PEMBERIAN PUPUK TERPADU DI KOTA YOGYAKARTA Sholikhah Nurlaila; Maria Theresia, Darini; Sri, Widata
JURNAL ILMIAH AGROUST Vol 7 No 2 (2023): Oktober
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/jiagt.v7i2.15890

This study aims to determine the source of organic fertilizer and the correct dose of NPK fertilizer that can increase the growth and yield of sweet corn, and to determine the interaction between the source of organic fertilizer and dose of NPK fertilizer on the growth and yield of sweet corn. This research was conducted in June – December 2022, located in Giwangan, Yogyakarta. This research was arranged using RCBD with 2 factors. First factor is the source of organic fertilizer consisting of chicken manure, cow manure, and household waste compost. Second factor was the dose of NPK fertilizer which consisted of 100 kg/ha, 150 kg/ha, and 200 kg/ha. The variables obeserved include growth variables consisting of plant height, number of leaves, leaf area, plant fresh weight, plant dry weight, and chlorophyll content and yield variables consisting of plant fresh weight, plant dry weight, cob weight, cob diameter, yield per hectare, number of rows of seeds on the cob, and fruit sweetness level. Data analysis used was a 5% level of variance followed by a 5% DMRT test. The result showed that there was no interaction with all variables, except for the level of sweetness of the fruit. Organic fertilizer sources have no effect on all variables. NPK fertilizer dose treatment didn’t affect all variables. The combination of treatments with organic fertilizer sources (chicken manure, cow manure, compost) and NPK fertilizer doses (100, 150, 200) kg/hashowed no effect on the control of growth variables, but had an effect on yield variables. Keywords: source of organic fertilizer, dose of NPK fertilizer, growth and yield, sweet corn.

RESPON PERTUMBUHAN DAN HASIL TANAMAN JAGUNG MANIS (Zea mays-saccharata Sturt) PADA APLIKASI JUMLAH BENIH DAN PUPUK MAJEMUK DI KOTA YOGYAKARTA Irawan; Maria Theresia, Darini; Sri, Widata
JURNAL ILMIAH AGROUST Vol 7 No 2 (2023): Oktober
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/jiagt.v7i2.15892

This study aims to determine the use of the right number of seeds and doses on NPK fertilizer on the growth and yield of sweet corn plants and to determine the interaction between the number of seed and to the dose of compound fertilizer on the growth and yield of sweet corn plants. The research was conducted from June to December 2022 in Giwangan, Umbulharjo, Yogyakarta. The research is arranged in RAKL with two factors. The first factor is the number of seeds per planting hole, namely on seed per planting hole (D₁), and two seeds per planting hole (D₂). the second factor is the dose of compound fertilizer, namely the dose of NPK fertilizer 100 kg/ha (N₁), 150 kg/ha (N₂), and 200 kg/ha (N₃). The variables observed consisted of growth variables, such as average plant heigh, number of leaves per plant, leaf area of the plantation, chorophyll content, fresh weight per plant, dry weight per plant and yield variables such as fresh weight per plant, dry weight per plant, weight brown cobs, weight of brown cobs per hectare, number of leaves per plant, cob diameter, number of rows of seeds on cob, sweetness level. Observational data were analyzed using variance at the 5% level followed by the DMRT test at a = 5% level. The results of the analysis showed that there was no interaction between the number of seeds per planting hole and the dose of compound ferlizer on the growth and yield of sweet corn plants. The treatment of the number of seeds per planting hole showed an effect on growth, the number of two seeds per hole gave lower yields than the number of one seed per planting hole. Doses of 100 kg, 150 kg, 200 kg NPK fertilizer had no effect on the growth and yield of cob weight and fresh weight of sweet corn plants. The treatment of the number of seeds per planting hole and the application of NPK fertilizer showed a significant and higher difference with the control on growth and yield. Keywords : sweet corn, number of seeds, NPK fertilizer, growth and yield.

ANALISIS PERTUMBUHAN DAN HASIL TANAMAN JAGUNG MANIS (Zea mays-saccharata Sturt), PADA JUMLAH BENIH DAN DOSIS PUPUK MAJEMUK Akbar Bimantoro; Maria Theresia, Darini; Sri, Widata
JURNAL ILMIAH AGROUST Vol 8 No 1 (2024): Maret
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/jiagt.v8i1.15966

This research aims to obtain the right number of seeds per planting hole and the right dose of NPK fertilizer so that it can increase the growth and yield of sweet corn plants, and test whether there is an interaction between the number of seeds per planting hole and the dose of NPK fertilizer which can increase plant growth and yield. sweet corn. The research was carried out on the land of the Pelangi Mendungan Adult Farmers Group, Giwangan, Umbulharjo, Yogyakarta and at the Integrated Laboratory, Sarjanawiyata Tamansiswa University Yogyakarta. The research will start from June – December 2022, arranged in a Complete Randomized Block Design (RAKL) with 4 replications. The first factor is the number of seeds (D) one and two seeds per planting hole. The second factor is the dose of NPK (N) fertilizer (100, 150, and 200) kg/ha. The research results were analyzed using variance at the 5% level, then continued with the Duncan'S Multiple Range Test (DMRT) at the a = 5% level. There was no interaction between the number of seeds per planting hole and the treatment dose of NPK fertilizer on all growth and yield variables. The number of seeds per planting hole influence the analysis of growth and yield of cob weight, the number of 1 seed per planting hole increases the weight per husked ear, while the number of 2 seeds per planting hole increases the wight of the ear per ha. The NPK fertilizer dose (100, 150, 200) kg/ha had no effect on growth and weight of sweet corn cobs per ha. Key words: sweet corn, weight of husked cobs, fresh weight per plant.

EFEK SUMBER PUPUK ORGANIK DAN JUMLAH BENIH PER LUBANG TANAM TERHADAP ANALISIS PERTUMBUHAN DAN HASIL TANAMAN JAGUNG MANIS (Zea mays-saccharata Sturt) Anak Agung Bagus Sugiarsana; Maria Theresia, Darini; Sri, Widata
JURNAL ILMIAH AGROUST Vol 8 No 1 (2024): Maret
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/jiagt.v8i1.15965

This research aims to determine the interaction between the source of organic fertilizer and the number of seeds per planting hole on the growth and yield analysis of sweet corn plants. The research was carried out from June to December 2022, located in Giwangan, Yogyakarta. This research was structured in a Complete Randomized Block Design (RAKL) with 4 factorial replications. The first factor is the source of organic fertilizer, namely the source of cow manure, chicken manure, compost. The second factor is the number of seeds, namely one per planting hole, and two per planting hole. The variables observed included leaf area, leaf area index, plant dry weight, plant growth rate, relative growth rate, ear weight per plant, ear weight per hectare, ear diameter, number of rows, and level of seed sweetness. Data analysis used variance at 5% level then continued with DMRT (Duncan's Multiple Range Test) at α=5% level. The research results showed that there was no interaction between the source of organic fertilizer and the number of seeds per planting hole on the growth and yield analysis of sweet corn plants. Sources of organic chicken fertilizer (K2) increase the weight of cobs per sweet corn plant, but do not increase the growth analysis of sweet corn plants. The number of one seed per planting hole increases the ear weight per plant. The number of two seeds per planting hole increases the cob weight per hectare. The source of organic fertilizer and the number of seeds per planting hole resulted in a higher cob weight per hectare than the control. Keywords: sweet corn, source of organic fertilizer, and number of seeds.

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