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Efektivitas Fungisida Berbahan Aktif Heksakonazol terhadap Penyakit Jamur Akar Putih Bibit Tanaman Karet (Hevea brasiliensis) Wahyuni, Mardiana; Simanjuntak, Jenny Hotnida; Sitompul, Ingrid Ovie
Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Vol 3, No 1 (2018): Jurnal Agrotekma Desember
Publisher : Universitas Medan Area

White Root Fungus Disease (JAP) is the biggest threat in rubber. The attack can result in a significant reduction in number, especially in plants lasting 0-3 years. The pathogen that causes white fungus is Rigidoporus lignosus. In JAP endemic areas, decreased tree density 40-50%. In rubber seedlings, symptoms of JAP attack with yellowing color leaves, then dry and fall. This study was conducted at STIP-AP Medan from January 2017 to June 2017. The aim of the study was to determine the effectiveness of several doses of hexaconazole. This study uses a non-factorial Randomized Block Design (RBD) with four replications. Hexaconazole fungicides are active with treatment of A0, A1, A2, A3 and A4 (0, 5, 10, 15 and 20 ml / l air). The results of this study indicate that A2 application of hexaconazole-active fungicides (10 ml / l air) has been effective in controlling JAP disease in rubber seedlings.

PENGARUH PEMBERIAN KOMPOS BLOTONG LIMBAH PABRIK GULA DAN MIKORIZA TERHADAP PERTUMBUHAN BIBIT KELAPA SAWIT (ELAEIS GUINEENSIS JACQ) Sari, Kartika; Wahyuni, Mardiana; Wijaya, Hardy
Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Vol 4, No 1 (2019): Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian, Desember
Publisher : Universitas Medan Area

Nursery success is one of the important things in the oil palm plantation business. Nurseries are the beginning of efforts to cultivate palm plants, so the nurseries must consider all the conditions that can affect the development of the growth of oil palm plants. One important requirement is to conduct nurseries that tend to be organic, which are environmentally friendly. The use of organic fertilizers and sustainable biological fertilizers is very important in increasing soil fertility, growth and crop yields. Organic fertilizer that used is sugar mill wasted blotong and biological fertilizer is mychorrhizal. To determine the effect of giving sugar mill waste blotong and mycorrhizal applications on P nutrient levels in the Main Nursery. This study uses factorial randomized block design method (RAK). First factor is blotong (B): B0= control, B1= 500 gr blotong/seed, B2= 100 gr blotong/seed. Second factor is Mycorrhizal (M): M0= control, M1= 10 gr mycorrhizal arbusculae/seed, M2= 20 gr mycorrhizal arbusculae/seed. 9 treatment combinations were obtained with 4 replications, so the total treatment was 36. Blotong compost application significantly affected palm seed height, canopy dry weight and root dry weight, while mycorrhizal application only significantly affected seed height. the combination between them two gives the best effect on B1M1 treatment.

Pengaruh Kompos Mucuna bracteata Dan Azotobacter Terhadap Pertumbuhan Dan Kadar Nitrogen Bibit Kelapa Sawit Wahyuni, Mardiana; Triani, Agus; Sembiring, Mariani
Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Vol 4, No 2 (2020): Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian, Juni
Publisher : Universitas Medan Area

Through the nursery process with certain treatments can be produced quality seeds. Application of Mucuna bracteata compost and Azotobacter on growing media in polybags is one alternative that expected to increase plant growth. This study aimed to determine the effect of M. bracteata compost and Azotobacter and its combination on growth and nitrogen levels of oil palm seedlings. This research was conducted at STIPAP Medan in December 2018 - June 2019 with a Factorial Randomized Block Design (RBD). Treatment compost (K) 3 levels ie K0, K1 and K2 and Azotobacter (A) with 3 levels are A0, A1 and A2. M. bracteata treatment had a very significant effect on seedling height, number of leaves, shoot dry weight and root dry weight. Azotobacter treatment did not significantly affect the parameters of observation, increasing levels of leaf N 13-15%. Interaction compost and Azotobacter treatment had no significant effect. The best treatment is the K2A2 of 1.2 kg of compost and 30 ml of Azotobacter each oil palm seedlings planted in the polybag.

Resistensi Bibit Kelapa Sawit dengan Perlakuan Trichoderma Sp., Mikoriza, dan Pupuk Kcl terhadap InfeksiInokulum Ganoderma Boninese Wahyuni, Mardiana; Yosephine, Ingrid Ovie
Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Vol 5, No 1 (2020): Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian, Desember
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agr.v5i1.4406

Root rot disease caused by the Ganoderma boninense fungus is a serious problem in oil palm cultivation. Initially this disease attacks mature plants, plants of the 3rd generation; but at this time Ganoderma disease has attacked immature plants and nurseries. Ganodermapathogens are soil borne. Improvement of growing conditions needs to be improved with the application of chemical fertilizers and the use of biological agents such as Trichoderma and Mycorrhizae. This study aims to determine the resistance of oil palm seeds with KCl, Trichoderma, and Mycorrhizal fertilizer treatments. The Ganoderma inoculum is infused in the form of a Rubber Wood Block (RWB). The research design was a factorial randomized block design consisting of 3 treatments, namely Trichoderma (T0, T1,T2), Mycorrhizae (M0, M1, M2), and KCl fertilizer (K0, K1, K2). There were 18 treatments with 3 replications. Observation parameters were seed height, number of leaves, roots, and attack intensity. The growth of seedlings at the 3rd and 5th months showed that the growth of seedlings was due to Ganoderma infection. Trichoderma and mycorrhizal treatment increased the number of healthy roots and crown dry weight. The treatment of KCl fertilizer only plays a role in root health. The best treatment is T1M2K1.Keywords:

Pengaruh Aplikasi Kompos Hijauan Mucuna bracteata Dan mikoriza Terhadap Kadar Hara P Dan Pertumbuhan Bibit Kelapa Sawit (Elaeis guineensis Jacq) Wahyuni, Mardiana; Maharany, Rina; Cahya Hasyanah Dlm, Aulia
Agrium Vol 17, No 2 (2020)
Publisher : Faculty of Agriculture, Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/agrium.v17i2.2850

Respon Pemberian Biochar Tandan Kosong Kelapa Sawit Dan Pupuk NPK Pada Media Tanam Terhadap Pertumbuhan Bibit Kelapa Sawit Wahyuni, Mardiana; Maharany, Rina; Putri Sundari, Eka; AG, Rosnina
Agrium Vol 18, No 2 (2021)
Publisher : Faculty of Agriculture, Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/agrium.v18i2.5328

Penelitian ini telah dijalankan di kebun percobaan STIPAP Medan pada bulan Februari–Juni 2020. Rancangan yang digunakan adalah Rancangan Acak Kelompok (RAK) 2 Faktorial yang terdiri dari 9 perlakuan dengan 4 ulangan, sehingga total sampel keseluruhan 36 bibit. Parameter yang diamati adalah tinggi bibit, lingkar batang, jumlah daun, jumlah kadar klorofil daun. Data yang diperoleh dianalisis secara statistik dengan analisis of varience (ANOVA) dengan uji beda nyata 5%. Hasil penelitian ini menunjukkan bahwa aplikasi biochar tandan kosong kelapa sawit dan pupuk majemuk memberikan pengaruh yang nyata terhadap tinggi batang, lingkar batang, jumlah daun, kadar klorofil daun, sedangkan interaksi antara aplikasi biochar tandan kosong kelapa sawit dan pupuk majemuk tidak berpengaruh nyata terhadap seluruh parameter pengamatan.

Pengaruh Pemberian Kompos Blotong Limbah Pabrik Gula Dan Mikoriza Terhadap Pertumbuhan Bibit Kelapa Sawit (Elaeis guineensis Jacq) Sari, Kartika; Wahyuni, Mardiana; Wijaya, Hardy
Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Vol 4, No 1 (2019): Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian, Desember
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agr.v4i1.3087

Nursery success is one of the important things in the oil palm plantation business. Nurseries are the beginning of efforts to cultivate palm plants, so the nurseries must consider all the conditions that can affect the development of the growth of oil palm plants. One important requirement is to conduct nurseries that tend to be organic, which are environmentally friendly. The use of organic fertilizers and sustainable biological fertilizers is very important in increasing soil fertility, growth and crop yields. Organic fertilizer that used is sugar mill wasted blotong and biological fertilizer is mychorrhizal. To determine the effect of giving sugar mill waste blotong and mycorrhizal applications on P nutrient levels in the Main Nursery. This study uses factorial randomized block design method (RAK). First factor is blotong (B): B0= control, B1= 500 gr blotong/seed, B2= 100 gr blotong/seed. Second factor is Mycorrhizal (M): M0= control, M1= 10 gr mycorrhizal arbusculae/seed, M2= 20 gr mycorrhizal arbusculae/seed. 9 treatment combinations were obtained with 4 replications, so the total treatment was 36. Blotong compost application significantly affected palm seed height, canopy dry weight and root dry weight, while mycorrhizal application only significantly affected seed height. the combination between them two gives the best effect on B1M1 treatment.

Efektivitas Fungisida Berbahan Aktif Heksakonazol terhadap Penyakit Jamur Akar Putih Bibit Tanaman Karet (Hevea brasiliensis) Wahyuni, Mardiana; Simanjuntak, Jenny Hotnida; Sitompul, Ingrid Ovie
Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Vol 3, No 1 (2018): Jurnal Agrotekma Desember
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agr.v3i1.1799

White Root Fungus Disease (JAP) is the biggest threat in rubber. The attack can result in a significant reduction in number, especially in plants lasting 0-3 years. The pathogen that causes white fungus is Rigidoporus lignosus. In JAP endemic areas, decreased tree density 40-50%. In rubber seedlings, symptoms of JAP attack with yellowing color leaves, then dry and fall. This study was conducted at STIP-AP Medan from January 2017 to June 2017. The aim of the study was to determine the effectiveness of several doses of hexaconazole. This study uses a non-factorial Randomized Block Design (RBD) with four replications. Hexaconazole fungicides are active with treatment of A0, A1, A2, A3 and A4 (0, 5, 10, 15 and 20 ml / l air). The results of this study indicate that A2 application of hexaconazole-active fungicides (10 ml / l air) has been effective in controlling JAP disease in rubber seedlings.

INTERAKSI PERLAKUAN MIKORIZA DAN INOKULUM Rhizobium sp TERHADAP PERTUMBUHAN DAN PEMBENTUKAN BINTIL AKAR Mucuna bracteata Mardiana Wahyuni; Ricky Elmando Saragih; Mariani Sembiring
Jurnal Penelitian Pertanian Terapan Vol 20 No 2 (2020)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v20i2.1408

The purpose of this study was to determine the effect of mycorrhizal treatment and inoculation of Rhizobium sp on the growth and formation of Mucuna bracteata root nodules. The study was conducted in the STIPAP Medan experimental garden. The study was conducted in April - July 2019. The study used 2 factorial randomized block design (RBD) methods consisting of 3 and 3 treatments with 4 replications, so that the total sample was 36 seedlings. Parameters observed were length of tendrils, number of leaves, number of root nodules, dry weight of root nodules, chlorophyll content, leaf N content and the degree of root infection. The data obtained were statistically analyzed by analysis of variance (ANOVA) with the test 5% significant difference. The results showed that the best single treatment of Mikoriza in this study was M2 with a dose of 40 g/seed, which affected in length of tendrils. Rhizobium sp application significantly affected the length of tendrils, number of leaves, number of nodules at the best single treatment is R2 with a dose of 0.6 ml/seed. Interaction of mycorrhizal and Rhizobium sp treatment showed a significant effect on M2R2 treatment, namely mycorrhizal application with a dose of 40 g/seed and Rhizobium sp application with a dose of 0.6 ml/seed had the best growth for several observational parameters.

Pengaruh Aplikasi Kompos Hijauan Mucuna bracteata Dan mikoriza Terhadap Kadar Hara P Dan Pertumbuhan Bibit Kelapa Sawit (Elaeis guineensis Jacq) Mardiana Wahyuni; Rina Maharany; Aulia Cahya Hasyanah Dlm
Agrium Vol 17, No 2 (2020)
Publisher : Faculty of Agriculture, Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/agrium.v17i2.2850

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