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Agrosaintifika: Jurnal Ilmu-Ilmu Pertanian
Published by Universitas KH. A. Wahab Hasbullah
ISSN : -     EISSN : 26556391     DOI : -
Core Subject : Agriculture, Social,
Agriculture, Biological Sciences & Forestry Environmental Science
AGROSAINTIFIKA: Jurnal Ilmu-Ilmu Pertanian adalah jurnal ilmiah yang diterbitkan oleh LPPM Universitas KH. A. Wahab Hasbullah untuk menyebarluaskan penelitian baik dari mahasiswa maupun dosen dalam bidang ilmu pertanian. Jurnal ini menekankan kajian ilmu pertanian yang meliputi budidaya pertanian dan ilmu perlindungan tanaman, agroekologi, teknologi pengolahan hasil pertanian, sosial ekonomi pertanian dan agribisnis, serta keteknikan pertanian dan ilmu-ilmu bidang pertanian lainnya. Terbit dua kali dalam satu tahun dan terbuka bagi para kontributor dari keahlian ilmu pertanian. E-ISSN : 2655-6391
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 5 Documents
 1 
Search results for , issue "Vol 4 No 1 (2021): November" : 5 Documents clear
Analisis Kandungan Unsur Hara Makro Media Pertumbuhan Jambu Bol Varietas Jamaika (Syzygium malaccensei) Di Desa Gondangmanis Kecamatan Bandarkedungmulyo Jombang Rifky Kumalasari; Miftachul Chusnah
AGROSAINTIFIKA Vol 4 No 1 (2021): November
Publisher : LPPM Universitas KH. A. Wahab Hasbullah

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (118.815 KB) | DOI: 10.32764/agrosaintifika.v4i1.1868

Abstract

Penelitian ini bertujuan untuk mengetahui beberapa kandungan unsur hara makro media pertumbuhan Jambu Bol Varietas Jamaika di Desa Gondangmanis Kecamatan Bandarkedungmulyo Jombang. Sedangkan kegunaanpenelitian ini adalah sebagai informasi mengenai nilai kandungan unsur hara makro pada media pertumbuhan Jambu Bol Varietas Jamaika di Dsn.Prayungan Desa.Gondang manis sehingga di harapkan dapat di jadikan sebagai acuan dalam mengelolah media pertumbuhan Jambu Bol Varietas Jamaika. Metode yang digunakan dalam penelitian ini yaitu menggunakan metode kualitatif. Pengamatan serta pengambilan sampel tanah dilakukan dengan cara taktis. Jarak pengambilan sampel dari titik pengamatan satu dengan titik pengamatan lainnya disesuaikan dengan kondisi wilayah. Setiap titik diambil 10 sub lalu dijadikan satu sehingga memperoleh sampel tanah komposit untuk dianalisis dilaboratorium. Analisis tanah mencakup sifat kimia tanah yaitu pH,Nitrogen,Fosfor,C-Organik. Hasil analisis kimia dari dua sampel tanah dapat dibandingkan kriteria tanah yang layak dijadikan media pertumbuhan Jambu Bol Varietas Jamaika.
ANALISIS KANDUNGAN UNSUR HARA MAKRO PADA MEDIA PERTUMBUHAN JAMBU BOL VARIETAS GONDANGMANIS (Syzygium malaccensei) DI DESA GONDANGMANIS KECAMATAN BANDARKEDUNGMULYO JOMBANG Nur Laili Sa'adah; Miftachul Chusnah
AGROSAINTIFIKA Vol 4 No 1 (2021): November
Publisher : LPPM Universitas KH. A. Wahab Hasbullah

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (199.076 KB) | DOI: 10.32764/agrosaintifika.v4i1.1871

Abstract

Gondangmanis guava production has decreased every year, this is due to pests and plant diseases and due to decreased land quality, either due to soil fertility or the absence of cultivation techniques applied to Gondangmanis guava plants. This is caused by several factors, including the lack of supply of agricultural production inputs, the absence of development of guava cultivation technology, the absence of post-harvest technology assembly for guava, and the absence of wider marketing of guava production. soil organic matter, physical properties and macronutrients contained in the land of gondangmanis guava growth. The decline in land productivity will affect the productivity of crop production. Based on this, the author intends to examine how much macro nutrients are available in the Gondangmanis guava growth medium and the soil characteristics of the Gondangmanis guava growing media. The survey and sampling were carried out in the village of Gondangmanis Badarkedung, Mulyo, jombang. Anali This study used a qualitative research using a survey system followed by random sampling of soil at a depth of 0-20 cm. The soil sample is then analyzed in the Integrated Laboratory of the Department of Agriculture. Some of the parameters studied were soil pH determined by a pH meter, N-total was determined by the Kjeldahl method, P-total was determined using the Olsen method, C-organic was determined by the Walkley and black methods. The results of the analysis showed that the chemical content of the soil on the Gondangmanis guava media showed that the soil pH was neutral – alkaline, the C-organic content was very low, the N-total was very low, and the P-total was very high. The soil character of Gondangmanis guava growth media in Gondangmanis village is sandy loam and tends to be sandy.
KEMAMPUAN ANTAGONIS Tricoderma harzianum TERHADAP BEBERAPA JAMUR PATOGEN PENYAKIT TANAMAN Anton Muhibuddin; Syauqina Salsabila; Antok Wahyu Sektiono
AGROSAINTIFIKA Vol 4 No 1 (2021): November
Publisher : LPPM Universitas KH. A. Wahab Hasbullah

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (376.368 KB) | DOI: 10.32764/agrosaintifika.v4i1.2371

Abstract

Diseases that often attack plants are diseases caused by fungal pathogens causing stress such as fusarium wilt disease caused by Fusarium oxysporum, Alternaria solani, Rhizoctonia solani and Sclerotium rolfsii. One alternative to reduce these pathogens is Trichoderma harzianum. This study aims to determine the potential antibiosis antagonist characteristics of the fungus Trichoderma harzianum against several disease-causing pathogens in plants and the class of compounds contained therein.The method used in this research is experimental and descriptive. Experimental research was conducted by testing the fungus Trichoderma harzianum against several pathogenic fungi as an antibiosis. Then proceed to test the class of compounds using a phytochemical test on the filtrate of the secondary metabolites of Trichoderma harzianum. The results of the potential antibiosis antagonist test on the fungus Trichoderma harzianum showed the results of the antibiosis against the pathogenic fungi Fusarium oxysporum and the fungus Alternaria solani, but on the fungus Rhizoctonia solani and the fungus Sclerotium rolfsii, the results showed the presence of potential antibiosis followed by competition and parasitism. Inhibition on the seventh day of observation showed results of 79% against Fusarium oxysporum, 69% against Sclerotium rolfsii, 61% against Alternaria solani, and 59% against Rhizoctonia solani. Furthermore, for the phytochemical test, the filtrate of Trichoderma harzianum fungus showed positive content of alkaloids, flavonoids, steroids, and saponins.
MECHANISM ANTAGONISM of Trichoderma viride AGAINST SEVERAL TYPES of PATHOGENS and PRODUCTION of SECONDARY METABOLITES Anton Muhibuddin; Endah Mulyaningtyas Setiyowati; Antok Wahyu Sektiono
AGROSAINTIFIKA Vol 4 No 1 (2021): November
Publisher : LPPM Universitas KH. A. Wahab Hasbullah

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (395.111 KB) | DOI: 10.32764/agrosaintifika.v4i1.2375

Abstract

Biological control agents using antagonistic fungi have the ability to inhibit the development of disease-causing pathogens by various mechanisms such as competition for space and nutrients, antibiosis by producing antibiotics in the form of chemical compounds, and parasitism by entangling pathogenic hyphae. Antibiotic mechanism is a condition in which an organism secretes one or more metabolites that have a negative effect on other organisms. One of the fungi that has the ability as an antibiosis is Trichoderma viride, where this fungus secretes secondary metabolites in the form of a viridiol phytotoxin compound. This study conducted to determine the antagonist mechanism of the fungus T. viride in suppressing the growth of Alternaria solani, Fusarium oxysporum, Rhizoctonia solani, and Sclerotium rolfsii which causes disease in some cultivated plants, as well as what compounds T. viride possesses in suppressing the growth of other pathogens. This research was carried out at the Plant Disease Laboratory, Department of Plant Pest and Disease, Faculty of Agriculture, Brawijaya University from November 2020 to August 2021. The research was conducted using Trichoderma viride as antagonist fungus and Alternaria solani, Fusarium oxysporum, Rhizoctonia solani, and Sclerotium rolfsii as pathogenic fungi. This research consisted of 3 stages, the first stage was rejuvenation and macroscopic and microscopic characterization of pathogenic fungi and antagonist fungi. The second stage is the in vitro antagonist test using the dual culture method using a completely randomized design with 6 replications. The third stage is the phytochemical test of secondary metabolites using 5 test, namely terpenoid and steroid test, the alkaloid test, the flavonoids test, the tannin test, and the saponin test. The results showed that T. viride had an inhibitory ability >50% against four types of pathogens. The mechanism of T. viride antagonist against four treatments, three treatments belonged to the competition mechanism and one treatment belonged to the microparasite mechanism. The content of secondary metabolites of T. viride are steroids and alkaloids.
Pengaruh Dosis Pupuk Kalium dan Pupuk Organik Cair terhadap Persentase Serangan Penyakit Bulai dan Potensi Hasil Benih Jagung Manis (Zea mays saccarata L.) Hibrida Feri Firmansyah; Suharjono Suharjono; Dwi Kusma Hadiyanto
AGROSAINTIFIKA Vol 4 No 1 (2021): November
Publisher : LPPM Universitas KH. A. Wahab Hasbullah

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (258.727 KB) | DOI: 10.32764/agrosaintifika.v4i1.2390

Abstract

Downey Mildew is an important disease in corn plantation, the disease attacks the plantation in young phase until 100% and causes significant loss for farmers. the purpose of this study is to get a recommendation for an appropriate dose of potassium fertilizer and organic liquid fertilizer in suppressing the percentage of downey mildew attack and increase the production of hybrid sweet corn (Zea mays saccarata L.). This study used factorial randomized completely block design in order of potassium fertilizer (K) consist of 3 stages: K0 (0 gr/plant), K2 (3 gr/plant), K3 (6 gr/plant) and the second factor is in order of organic liquid fertilizer (P) consist of 3 stages: P0 (0 ml/liter), P1 (4ml/liter), P2 (8ml/liter) each treatment is replicated 3 times. The result was showed potassium treatment (K) gave significantly differen effects for the parameter of plant height k2 with an avarage of 179.0 cm, weight of cobs without husk per plantation K2 with an avarage 298.5 g, cob lenght K2 with an avarage21.3 cm, weight 1000 grains K2 with an avarage 157.6 gr, and potential harvest per hectare K2 with an avarage 15.3 ton. Gave significant effect for parameter leaf width K2 with an avarage 9.5 cm and harvest cobs K2 with an avarage 1.8. The treatment of liquid organic fertilizer (P) also gave significantly differen effects for parameter of harvest cobs P2 with an avarage 1.9. Gave significant effect for parameter weight of cobs without husk per plantation P2 with an avarage 293.4 gr, cob lenght P2 with an avarage 21.4 cm and potential harvest per hectare P2 with an avarage 15 ton. Together, the two treatments gave significantly differen effects for the parameter of number of seeds per cob K2P2 with an avarage 385.5 seed, and gave significant effect for parameter except the percentage of downy mildew attack K2P2 with an avarage 55.2%.

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