Ni Putu Yuliasih, Ni Putu
Prodi. Teknik Pertanian Fakultas Teknologi Pertanian Universitas Udayana

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Analisis Profil Suhu pada Greenhouse Tipe ARCH untuk Budidaya Bunga Krisan (Chrysanthemum morifolium) Yuliasih, Ni Putu; -, sumiyati -; Setiyo, yohanes -
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 4 No 1 (2016): Maret
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana

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Abstract

This research was describe about temperature profile on Arch Greenhouse with the curved shape of roof and square wall for Chrysanthemum (Chrysanthemum morifolium) that cultivated on Arch Greenhouse. The aims of this research were to obtain a temperature profile on arch greenhouse, to determine the building height of arch greenhouse which suit for chrysanthemum cultivation. Height treatments of greenhouse was separated by 3 levels i.e. 2.5 m, 3.0 m, and 3.5 m. Chrysanthemum seeds varietys used in this research was Fiji white. To measure the temperature used temperature and humidity meter. Temperature measurement carried out by 2 times start from a week before planting (empty condition) and plant age was 45 days after planting. Doing the measurement on morning, noon, and afternoon. Analysis data of temperature was done with interpolation to determine profile contour line of analysis temperature. The result showed that there are the different shape and contours distribution profile of microclimate for difference height. The level of growth plan on each treatments showed a better productivity on greenhouse with height 2.5 m when compared with the others. Greenhouse with height 2.5 m produced flower quality which suit as the SNI with average of height plan was 81.93 cm, grooming age was 46 days, amount flower was 5 florets per stem, flower wide was 44.26 cm, and dry weight was 13.11 gram.
Analisis Iklim Mikro di Greenhouse dengan Atap Tipe Arch untuk Budidaya Bunga Krisan Potong Setiyo, Yohanes; Sumiyati, S; Yuliasih, Ni Putu
Jurnal Ilmiah Teknologi Pertanian Agrotechno Vol 4 No 1 (2019)
Publisher : Universitas Udayana

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Abstract

Petani di Desa Candikuning membangun greenhouse untuk budidaya bunga krisan potong tanpa melakukan perhitungan teknis. Greenhouse tersebut dibangun berdasarkan pada ketersediaan bahan baku lokal, biaya tersedia dan topografi wilayah. Analisis iklim mikro pada greenhouse dengan atap tipe arch untuk optimasi kecepatan pertumbuhan dan kualitas bunga krisan yang dihasilkan menjadi obyek penelitian. Data-data yang dikumpulkan adalah: data iklim mikro (suhu, kelembaban, dan intensitas cahaya), data pertumbuhan tanaman krisan (tinggi tanaman)  dan data kualitas bunga (jumlah dan diameter bunga). Hasil penelitian terhadap intensitas cahaya  rata-rata di greenhouse dengan tinggi atap 2,5 m, 3,0 m dan 3,5 m masing-masing adalah : 27.6 ± 5.5 k.lux, 27,5 ± 4,3 k.lux dan 29.5 ± 2,5 k.lux dengan suhu rata-rata adalah 21,1 ±0,2 oC, 27,5 ±0,17 oC dan 21,2 ±0,3 oC. Intensitas cahaya yang memasuki ruangan greenhouse sebesar 20 – 30 % dari intensitas cahaya yang mengenai atap bangunan. Kelembaban udara di ruang greenhouse tersebut masing-masing adalah 73,3 ± 0,5%, 77,5 ± 0,4 %, dan 86,3 ± 0,7 %. Hal ini menunjukkan bahwa jumlah energi radiasi matahari yang diterima atap dan dinding greenhouse untuk menaikkan suhu ruangan dan intensitas cahaya dari greenhouse secara efektif untuk mendukung proses fotosintesis, sehingga tanaman berbunga pada ketinggian 70-80 cm dengan bunga pertama berdiameter rata-rata 7,5 ± 0,6 cm.   Farmers in Candikuning Village built a greenhouse for chrysanthemum cut flowers cultivation without performing technical calculations. The greenhouse was built based on the availability of local raw materials, available costs, and regional topography. Micro-climate analysis on roof-type greenhouse with arch type to optimize the growth speed and quality of the chrysanthemum produced is the object of research. The data collected are microclimate data (temperature, humidity, and light intensity), data on the growth of chrysanthemum plants (plant height) and flower quality data (number and diameter of flowers). The results of the study on the average light intensity in greenhouses with roof height of 2.5 m, 3.0 m and 3.5 m respectively are: 27.6 ± 5.5 k.lux, 27.5 ± 4.3 k.lux and 29.5 ± 2.5 k.lux with an average temperature of 21.1 ± 0.2 oC, 27.5 ± 0.17 oC and 21.2 ± 0.3 oC. The intensity of the light entering the greenhouse room is 20-30% of the intensity of light that affects the roof of the building. The air humidity in the greenhouse space is 73.3 ± 0.5%, 77.5 ± 0.4%, and 86.3 ± 0.7%, respectively. This shows that the amount of solar radiation energy received by the roof and walls of the greenhouse to increase the room temperature and light intensity from the greenhouse effectively to support photosynthesis so that the plants flower at an altitude of 70-80 cm with the first flower with an average diameter of 7.5 ± 0.6 cm