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All Journal JURNAL ILMU PERTANIAN International Journal of Social Science, Educational, Economics, Agriculture Research, and Technology (IJSET)
Murni Radiah
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Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Economics, Econometrics & Finance Education

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Keanekaragaman Komunitas Gulma Dalam Tanah Pada Tingkat Kedalaman dan Jarak Pengambilan Tanah Di Tanaman Kelapa Sawit Belum Menghasilkan Irna Syofia; Murni Radiah
AGRIUM: Jurnal Ilmu Pertanian Vol 21, No 2 (2018)
Publisher : UNIVERSITAS MUHAMMADIYAH SUMATERA UTARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (251.569 KB) | DOI: 10.30596/agrium.v21i2.1878

Abstract

Tujuan penelitian ini untuk mengetahui keragaman komunitas gulma dalam tanah pada  tingkat kedalaman dan jarak pengambilan tanah di tanaman  kelapa sawit belum menghasilkan. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) Faktorial yang terdiri dari dua Perlakuan yang diteliti yaitu Tingkat Kedalaman dan Jarak pengambilan Tanah. Untuk perlakuan tinkat kedalaman terdiri dari tiga taraf perlakuan, yaitu: M1 = 10 cm, M2= 20 cm, M3 = 30 cm, Sedangkan untuk perlakuan Jarak pengambilan tanah terdiri dari tiga taraf perlakuan, yaitu: R1 = 50 cm, R2 =100 cm, R3 = 150 cm. Terdapat 9 kombinasi perlakuan dengan tiga ulangan menghasilkan 9 polibeg dengan jumlah polibeg keseluruhan 27 polibeg dimana satu plot terdiri dari 9 polibeg dan semua merupakan sampel, Parameter yang diamati yaitu: Identifikasi Gulma sebelum pengambilan sampel tanah berupa ( Gulma dominan, Jumlah jenis Gulma) dan Identifikasi gulma setelah pemindahan tanah kedalampolibeg berupa ( Gulma dominan, jumlah jenis gulma, dan Komposisi Gulma).
INFLUENCE OF RAINFALL ON DOWNY MILDEW INTENSITY, PRODUCTIVITY, AND SYMPTOMS OF Peronosclerospora spp. ATTACK IN MAIZE CROPS IN SIMALUNGUN REGENCY Murni Radiah; Syamsafitri; Murni Sari Rahayu; Romi Fahri
International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET) Vol. 4 No. 8 (2025): JULY
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ijset.v4i8.869

Abstract

Maize is one of the world's food crops, and Simalungun Regency is one of the corn production centers in Indonesia. Corn production in Simalungun Regency has decreased due to various factors including downy mildew. Downy mildew disease is caused by Peronosclerospora spp. its development is increasingly rapid supported by a high humidity environment, while the purpose of the study was to examine the effect of rainfall on downy mildew disease intensity, productivity, production, and symptoms of corn plant attack in different locations.Research method: Observations of correlation and regression tests of rainfall on disease intensity, productivity, production, and harvest area of corn were analyzed using Minitab statistical application.The results showed that there is a relationship between rainfall and downy mildew intensity, production, productivity, and harvest area of corn plants. The intensity of downy mildew was highest in Tanah Jawa sub-district with an average disease intensity of 7.81%, this was due to the fact that no eradication was done on plants infected with Peronosclerospora spp. The symptoms of attack found at each observation location had the same symptoms.
Co-Authors Irna Syofia Murni Sari Rahayu Romi Fahri Syamsafitri