This study aims to determine the growth and production of rice in various planting systems and types of liquid organic fertilizer. The research was conducted in Rijang Panua Village, Kulo District, Sidenreng Rappang Regency from May to August 2016. The research was conducted based on a split plot design with main plot set was planting system consisted of three levels, namely: the tile planting system (20 cm × 20 cm), the legowo planting system 4:1 (40 cm × 20 cm × 20 cm), and 2:1 legowo planting system (40 cm × 20 cm × 20 cm). Subplot was type of liquid organic fertilizer made from three types of raw material, namely Gliricidia tree leaves, banana weevils, and Gliricidia leaves + banana weevil. The results show that there was a significant interaction effect between the two treatments on parameters of plant height, number of grains per panicle, production per plot and production per hectare. The combination of 2:1 legowo planting system and the liquid organic fertilizer made from Gliricidia leaves + banana weevil gave the highest yields on production per hectare (5.55 ton.ha−1). Highest number of productive tillers and an earlier flowering age were observed in the 2:1 legowo planting system (32.26 tillers and 60 days after sowing).
The research aims to study the effect of various doses of NPK fertilizer and humic acid on the growth and production of purple waxy corn. The study was conducted in Bilonga Village, Bontonompo District, Gowa Regency, from September to December 2018. The method used was a two-factor factorial experiment and a randomized block design as the environmental design. The first factor was NPK fertilization consisting of four levels, namely Control, 250, 300, and 350 kg ha−1. Meanwhile, the second factor was humic acid which consists of three levels, namely 0, 15, and 20 kg ha−1 resulted in total of 12 treatment combinations that are repeated three times. The results show that NPK fertilization of 350 kg ha−1 resulted in the highest production of the purple waxy corn of 2.95 ton ha−1. The application of humic acid had no significant effect on the growth and production of the purple waxy corn, but the humic acid affected the increase in soil pH and cation exchanges capacity.
Porang (Amorphophallus muelleri Blume) adalah salah satu kekayaan hayati umbi-umbian Indonesia yang pembudidayaannya masih sangat terbatas. Salah satu cara untuk meningkatkan pemanfaatan taman porang adalah dengan memberikan penanda molekuler dalam studi hubungan kekerabatan. Hubungan kekerabatan plasma nutfah sangat penting bagi para pemulia karena dapat menjadi dasar perakitan individu baru yang memiliki karakter unggul melalui proses hibridisasi dimasa yang akan datang. Hubungan kekerabatan dapat diidentifikasi berdasarkan adanya kesamaan karakter dengan asumsi bahwa karakter yang berbeda disebabkan oleh adanya perbedaan susunan genetik. Penelitian ini menggunakan daun tanaman porang yang diperoleh dari beberapa daerah agroforestri di Sulawesi Selatan, yaitu Kabupaten Bantaeng, Bulukumba, Gowa, dan Maros. Sampel daun umbi porang diisolasi dan diekstraksi menggunakan cairan nitrogen dan pengukuran DNA dilakukan dengan menggunakan nanodrop spectrophotometry dengan rasio absorbansi sebesar 260/280. Pemurnian dilakukan dengan menggunakan campuran chisam dan NAOAc yang ditambahkan dengan isopropanol. DNA yang diekstraksi menghasilkan kualitas yang cukup baik dengan konsentrasi berkisar antara 72.9 ng/µl - 1206.9 ng/µl. Konsentrasi DNA terendah terdapat pada genotipe MR8 dan genotipe tertinggi pada genotipe BL11. Hasil purifikasi DNA berkisar antara 5,3 ng/µl - 211,9 ng/µl dengan konsentrasi terendah diperoleh pada genotipe P.BT-BG13 dan konsentrasi tertinggi pada genotipe P.BL2.
This study aims to study the effect of bioslurry and NPK fertilizers and to determine the best dosage of bioslurry and NPK fertilizer on the growth and development of butternut squash. The study was conducted from December 2018 to 21 March 2019 in Purnakarya Village, Tanralili District, Maros Regency, South Sulawesi. The study was set as a trial using a split plot design. The main plot was three bioslurry concentrations namely control, 100, and 200 mL L−1 bioslurry. The subplot was the application of NPK fertilizer types consisted of four levels, namely NPK Pak Tani (16-16-16), NPK Gold (16-10-18), NPK RG05 (15-10-30), and NPK Booster (12-6-22-3). The results of the experiment show that there was a significant interaction between bioslurry and NPK types on the stem diameter of butternut squash plants (bioslurry 100 mL L−1 and NPK Pak Tani). The bioslurry treatment showed a significant effect on fruit weight by the application of bioslurry 200 mL L−1 (978.42 g). NPK treatment significantly affected fruit length with use of NPK Pak Tani that resulted in the longest fruit (24.58 cm).
An experiment was conducted to determine the effect of application of various types of local microorganisms (LM) to the growth and production of two rice (Oryza sativa L.) varieties. The experiment was conducted in the form of a 2-factor factorial design trial in the Randomized Block Design (RBD). The first factor was the variety, namely: Variety Mira-1 and Diah Suci. The second factor was 6 types of LM, namely: LM of gamal leaf, LM of vegetable waste, LM of fruit waste, LM of banana suckers, LM of cow urine and a mixture of those five LM ingredients; Therefore, there were 12 treatment combinations. The results showed that the Diah Suci variety gave higher yields than the Mira-1 variety on plant height, panicle length, number of grains, percentage of grain filled per panicle, 1000 grain weight, and grain production per hectare (11.42 tons/ha) The application of a mixture of the five types of LM resulted in a shorter flowering age of 66.33 HST, and a shorter harvest age of 102.33 HST. There are no results that indicate interactions between varieties and types of LM.
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