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Yohanis Amos Mustamu
Fakultas Pertanian Universitas Papua
Agriculture, Biological Sciences & Forestry

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Pengaruh pupuk organik dan anorganik terhadap intensitas penyakit karat daun buncis (Phaseolus vulgaris L.) di kebun percobaan Manggoapi Derek Kornelis Erari; Eko Agus Martatnto; Asti Loda Hamu Meha; Hangrie Jimmy Namserna; Yohanis Amos Mustamu
Agrotek Vol 9 No 2 (2021): Desember
Publisher : Fakultas Pertanian Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (228.983 KB) | DOI: 10.46549/agrotek.v9i2.173

Abstract

The purpose of this study was to determine the application effect of some organic fertilizers and inorganic fertilizers on the intensity of bean leaf rust disease. This study was designed using a Randomized Block Design (RAK), repeated 3 times, with 10 treatments, namely control (P0), Papua Nutrient (P1), POC Agrica (P2), NPK 16:16:16 (P3), POC Nasa (P4), Green Tonic (P5), Liquid Chemical Fertilizer Solution (P6), Urea + KCL + Phosphate (P7), Organic Fertilizer MX Bio Bas BWI (P8), and SP – 36 (P9). The results showed that the application of Papua Nutrient fertilizer has a better effect in suppressing the development of the intensity of bean leaf rust disease. The resistance of all treatments to the bean leaf rust disease studied was classified as moderately resistant.
Ketahanan beberapa genotipe ubi jalar ( Ipomoea batatas L. ) terhadap hama boleng Cylas formicarius Fabricus Kristina Uviani Samosir; Yacob Bodang; Yohanis Amos Mustamu; Herman Wafom Tubur; Rizald Hussein
Agrotek Vol 9 No 2 (2021): Desember
Publisher : Fakultas Pertanian Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (298.547 KB) | DOI: 10.46549/agrotek.v9i2.174

Abstract

The aim of this study was to measure the resistance of several sweet potato genotypes to C. formicarus Fabricus (Coleoptera: Curculionidae) attack. The design used in this study was a randomized block design (RAK) with 9 treatments and 3 replications, so that 27 experimental units were obtained. The genotype treatmens were Antin 1, Antin 2, Antin 3, Koya 2, Koya 4, Koya 6, Beta 2, Kidal, and Salosa. The results of the analysis showed that all of the tested genotypes were naturally damaged by C. formicarius pests both at the base of the stem and on the tubers. The intensity of tuber damage caused by C. formicarius among 9 tested genotypes was the highest in the Salosa genotype (17.593%) and the lowest was in the Antin 1 genotype (5.553%). The intensity of damage to the base of the stem caused by C. formicarius among the 9 genotypes tested was the highest in the Antin 1 genotype (61.110%) and the lowest was in the Left-handed genotype (47,333%). Colonization (infestation) of C. formicarius in the test genotype occurred from the beginning of the observation at 4 week until the plants were harvested (tubers formed). The egg and larvae populations in this study were not found, while the number of imago from each test genotype was different with the highest population was in the Antin 1 genotype (3,3200 individuals), then the lowest imago population was in the Antin 3 and salosa genotypes with an average value of 2.1467 individuals. The resistant genotypes were Koya 4, Salosa, and Beta 2, while genotypes that were moderately resistant were Koya 2, Kidal, Antin 3, but Antin 2, Koya 6 and Antin 1 were sensitive genotypes.
Co-Authors Asti Loda Hamu Meha Derek Kornelis Erari Eko Agus Martatnto Hangrie Jimmy Namserna Herman Wafom Tubur Kristina Uviani Samosir Rizald Hussein Yacob Bodang