Abstrak Kotoran ternak dapat dimanfaatkan sebagai pupuk kandang karena kandungan unsur hara seperti nitrogen (N), fosfor (P), dan kalium (K) yang dibutuhkan oleh tanaman dan kesuburan tanah. Salah satu kotoran ternak yang dapat digunakan SNI 19-7030-2004 (Rasio C/N, kadar N, P, K, air, dan C-organik). Sedangkan pada hari ke 40dan 50 diperoleh rasio C/N (9,74 dan 9,00) yang tidak sesuai dengan SNI 19-7030-2004 N, P, K, organic-C, C/N ratio, water content, and pH. The result of analysis is compared with SNI 19-7030-2004. Organic fertilizer analysis was conducted on day 0, 10, 20, 30, 40, and 50. The quality of organic fertilizer on day 10, 20, and 30 was in accordance with the quality stated in SNI 19-7030-2004 (C/N ratio, levels of N, P, K, water, and organic-C). While the C/N ratio of organic fertilizer on day 40 and 50 (9.74 and 9.00, respectively) are not in accordance with C/N ratio stated in SNI 19-7030-2004 which is 10-20. The optimal time for the composting of goat manure with coconut coir dust and EM4 bio-activator is <30 days. Abstract Animal manures can be used as organic fertilizer because the high nutrient content such as nitrogen (N), phosphorus (P), and potassium (K). The nutrients are needed by plants and soil for fertility. One of the animal manures that can be used for organic fertilizer is goat manure. Goat manure is used as organic fertilizer it contains relatively more balanced nutrients than other natural fertilizer. In addition, the goat manure is mixed with the goat urine that also contains high nutrients. Coconut coir dust contains high potassium so that the addition of coconut coirdust in organic fertilizer will increase the potassium content (K) in organic fertilizer. This study aimed to determine the optimal time of composting and the quality of the organic fertilizer. The organic fertilizer was analyzed to determine the content of
Aren (Arenga pinnata Merr) is a type of palm that has a fairly high economic value, is spreading widely in Indonesia. All parts of the sugar plant ranging from leaves to roots can be utilized. The main result is the sap of the sugar plant, sugar palm juice contains between 10-15%. Because the sugar content of the sugar palm can be processed into alcohol, palm sugar, palm syrup, palm vinegar and ethanol. Based on the analysis results obtained, sugar palm farmers monthly fee of Rp. 2,196,815, year. Average monthly revenues of Rp 4.1236 million, -and Rp 49.483.200, -per year. Palm farmers' income of Rp 1,926,785, year. Analysis of R / C Ratio > 1 is 1.88, which means businesses aren farmer in Tomohon is getting profit.
Molecular markers through individual identification have been used to protect plant varieties, identify varieties, purity test of seeds, and parented analysis in palm oil breeding programs. However, such identification has not been intensively developed on coconut palm. Therefore, this study aimed to obtain individual-specific markers of Indonesian coconut palms and their association. Coconut palms were selected randomly from 7accessions (74 palms) and then evaluated based on 10 SSR primers and main agro morphological characters. This research was carried out during 2017 and 2018 at Plant Breeding Laboratory, UGM, Yogyakarta and Mapanget Experimental Garden, IPCRI, North Sulawesi. CnCir 123-300, CnCir 87-120, CnCir J2-205 were unique alleles that resulted in this study. Five of eleven specific alleles were associated with essential traits of dwarf coconut. CnCir123-250 and CnCir123-300 were specific alleles associated with almost all characters observed in this study. CnCirA9-100 is the only allele that is negatively associated with the height of 11 leaf scars and positively associated with the main characters. Therefore, it is advantageous as a marker-assisted selection of the current coconut plant breeding program. Applications of specific molecular markers associated with essential characters are expected to improve the sustainability of coconut breeding programs.
<p>Kelapa merupakan tanaman serba guna, kelapa genjah sesuai dijadikan sebagai kelapa muda segar dan lebih potensial disadap niranya. Indonesia memiliki kondisi iklim yang unik, menyebabkan kekeringan. Kelapa genjah rentan terhadap kekurangan air, sehingga perlu dilakukan upaya mengatispiasi kekeringan. Salah satu upaya dalam menghadapi kekeringan dengan pemberian unsur kalium. Tujuan penelitian adalah mengetahui pengaruh dosis pemberian pupuk kalium terhadap respon pertumbuhan beberapa varietas kelapa genjah di pembibitan dalam menghadapi kekeringan. Penelitian dilaksanakan di Rumah Kaca Balai Penelitian Tanaman Palma (Balit Palma) di Mapanget, Sulawesi Utara. Penelitian dilaksanakan bulan Mei sampai November 2020. Menggunakan Rancangan Acak Lengkap (RAL) Faktorial yang terdiri dari dua faktor. Faktor pertama adalah 4 varietas kelapa genjah. Faktor kedua adalah 5 perlakuan dosis pupuk KCl. Hasil penelitian diperoleh pemberian dosis pupuk kalium 110 g KCl menunjukan kecenderungan lebih baik pada parameter pertambahan tinggi tanaman pada 1 dan 2 bulan kekeringan. Dosis pupuk kalium 165 g KCl (P3) menunjukan kecenderungan lebih baik pada parameter pertambahan diameter batang pada 2 bulan kekeringan dan volume akar. Perlakuan kalium tidak berpengaruh nyata pada pertambahan diameter batang pada 1 bulan kekeringan, penambahan jumlah daun pada 1 dan 2 bulan kekeringan, kandungan klorofil, berat kering tajuk, dan berat kering akar. Pada perlakuan Varietas kelapa genjah tidak terdapat perbedaan yang nyata antara varietas pada semua parameter pengamatan dan hanya berbeda nyata pada kandungan klorofil. </p>
At this time there is the development of coconut plantations in the community, so that the need for coconut seeds continues to increase, to meet these needs it needs to be supported by the provision of good quality coconut seeds, worth planting in the field and have the criteria for simultaneous sprouts and high viability. Results seedling seed growers by famer have an average of 80% germination with a seed age of 11 and 12 months. This study aims to determine the ideal age of seeds to be used as seeds that have germination speed and high viability. The research was conducted using two treatments consisting of coconut seeds aged 11 months and coconut seeds aged 12 months. Each treatment contained 100 plants so that 200 coconut seeds were used. The difference in age of coconut seeds gives significantly different results when they appear germination, the fastest results obtained on 12-month-old seeds. At the sprout power the highest yield was obtained for coconut seeds aged 12 months.
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