Rusdiansyah Rusdiansyah
Faculty Of Agriculture, Universitas Mulawarman, Samarinda, East Kalimantan Province,

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Morphological Characteristics of Batuah Red-Fleshed Durian (Durio graveolens), an Endemic Exotic Plant from East Kalimantan, Indonesia Odit Ferry Kurniadinata; Song Wenpei; Rusdiansyah Rusdiansyah
Journal of Tropical Horticulture Vol 3, No 1 (2020): April 2020
Publisher : Indonesian Society for Horticulture (Perhimpunan Hortikultura Indonesia Komisariat Aceh)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1368.889 KB) | DOI: 10.33089/jthort.v3i1.39

Abstract

Kalimantan Island is rich in genetic resources and species diversity of Durio spp. plant. The large number of Durio species that grow in Kalimantan illustrates that this area is the most important distribution center for durian relatives. The best-known edible durians are Durian (Durio zibethinus). However, Kalimantan also has various types of Durian that are not yet widely known and have superior potential. One of the unique and exotic plants is the red flesh Durian in East Kalimantan, Indonesia. The fruit of this plant is unique because it has red flesh. At present, there is no morphological identification of this East Kalimantan Durio graveolens plant. The study aimed to identify the morphological character of Batuah D. graveolens from East Kalimantan, Indonesia. This research was carried out by collecting data and information about the morphological characteristics of the plant and fruits. The results of the study successfully identified Batuah D. graveolens from East Kalimantan as a plant diverts from another Durio spp. plant known like D. zibethinus and D. kutejensis especially for red flesh character.
PERTUMBUHAN DAN HASIL TANAMAN JAGUNG (Zea mays L.) DENGAN PENGAYAAN MIKORIZA DAN PUPUK MAJEMUK PADA LAHAN PASCA TAMBANG BATUBARA Syamad Ramayana; Suria Darma Idris; Rusdiansyah Rusdiansyah; Diah Nurul Faizin; Helda Syahfari
Agrika Vol 16, No 1 (2022): MEI 2022
Publisher : Badan Penerbitan Universitas Widyagama Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/ja.v16i1.3710

Abstract

ABSTRAKLahan pasca tambang batubara merupakan lahan kritis yang berpotensi untuk dialih fungsikan menjadi lahan pertanian. Dampak utama pertambangan batubara adalah tanah menjadi kurang subur karena hilangnya tanah lapisan atas. Lahan pasca tambang batubara dapat dimanfaatkan untuk budidaya pertanian bila telah dilakukan perbaikan kondisi lahan sehingga menjadi lahan yang produktif untuk produksi tanaman pangan. Penelitian ini bertujuan untuk mengetahui respon pertumbuhan dan hasil jagung (Zea mays L.) terhadap pengayaan mikoriza dan aplikasi pupuk majemuk pada lahan pasca tambang batubara dan mengetahui komposisi  pupuk majemuk yang tepat.. Penelitian dilaksanakan di lahan pasca tambang batubara Desa Bangun Rejo, Kecamatan Tenggarong Seberang, Kabupaten Kutai Kartanegara, Kalimantan Timur. Penelitian menggunakan Rancangan Acak Kelompok (RAK) dengan satu faktor yaitu pemberian beberapa pupuk majemuk (P) dengan pengayaan mikoriza, terdiri dari 5 taraf dan 5 ulangan yaitu m0 = tanpa pupuk dan mikoriza; m1 = 500 kg/ha NPK 20:10:10 setara 4.2 kg/petak + mikoriza; m2 = 500 kg/ha NPK 17:9:11 setara 4.2 kg/petak + mikoriza; m3 = 500 kg/ha 16:16:16 setara 4.2 kg/petak + mikoriza; dan 500 kg/ha setara 4.2 kg/petak 15:20:13 setara 4.2 kg/petak + mikoriza. Hasil penelitian menunjukkan bahwa pemberian pupuk majemuk dengan pengayaan mikoriza berbeda nyata terhadap parameter tinggi tanaman 15, 30 dan 45 hari setelah tanam (HST); diameter batang 15 dan 45 HST; jumlah daun 15, 30 dan 45 HST; panjang tongkol, diameter tongkol, jumlah biji dalam baris, berat biji/tongkol, berat biji/100 butir, dan potensi hasil, tetapi tidak berbeda nyata terhadap diameter batang 30 HST dan jumlah baris biji. ABSTRACTPost-coal mining land is critical land that has the potential to be converted into agricultural land. The main impact of coal mining is that the soil becomes less fertile due to the loss of topsoil. Post-coal mining land can be used for agricultural cultivation if land conditions have been improved so that it becomes productive land for food crop production. This study aims to determine the response of growth and yield of maize (Zea mays L.) on mycorrhizal enrichment and application of compound fertilizers on post-coal mining land and determine the appropriate composition of compound fertilizers. The research was carried out in the post-coal mine area of Bangun Rejo Village, Tenggarong Seberang District, Kutai Kartanegara Regency, East Kalimantan. The study used a randomized block design (RAK) with one factor, namely the application of several compound fertilizers (P) with mycorrhizal enrichment, consisting of 5 levels and 5 replications, namely m0 = without fertilizer and mycorrhizae; m1 = 500 kg/ha NPK 20:10:10 equivalent to 4.2 kg/plot + mycorrhizae; m2 = 500 kg/ha NPK 17:9:11 equivalent to 4.2 kg/plot + mycorrhizae; m3 = 500 kg/ha 16:16:16 equivalent to 4.2 kg/plot + mycorrhizae; and 500 kg/ha equivalent to 4.2 kg/plot 15:20:13 equivalent to 4.2 kg/plot + mycorrhizae. The results showed that the application of compound fertilizer with mycorrhizal enrichment was significantly different to plant height parameters 15, 30 and 45 days after planting (DAT); rod diameter 15 and 45 DAT; number of leaves 15, 30 and 45 DAP; cob length, ear diameter, number of seeds in rows, weight of seeds/cob, weight of seeds/100 grains, and yield potential, but not significantly different with stem diameter 30 DAP and number of rows of seeds. 
PERTUMBUHAN DAN HASIL TANAMAN TOMAT (Lycopersicum esculentum MILL.) PADA PEMBERIAN PUPUK ZN DAN JARAK TANAM YANG BERBEDA Alvera Prihatini Dewi Nazari; Rusdiansyah Rusdiansyah; Ary Puja Meklin Siregar; Abdul Rahmi
ZIRAA'AH MAJALAH ILMIAH PERTANIAN Vol 45, No 3 (2020)
Publisher : Pusat Publikasi Jurnal Universitas Islam Kalimantan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/zmip.v45i3.3482

Abstract

Tomato (Lycopersicum esculentum Mill.) is a plant that is rich in benefits, but the yield is still low, some of which are due to a lack of nutrients, one of which is micro nutrient zinc, and improper plant spacing. The research was carried out to determine: 1) the best dose of Zn fertilizer and the right plant spacing; 2) the interaction between Zn fertilizer dosage and plant spacing; 3) the relationship (correlation) between the two observed variables. The research was conducted from July to October 2018 in Teluk Dalam Village, Mulawarman Village, Tenggarong Seberang District, Kutai Kartanegara Regency. The 4x3 factorial experiment was arranged in a Randomized Complete Block Design with three replications. The first factor was the dose of Zn fertilizer, consisting of four levels, namely 0.00; 3.00; 6.00; and 9.00 kg Zn ha-1. The second factor was plant spacing, consisting of: 50 cm x 50 cm; 60 cm x 50 cm; 70 cm x 50 cm. Data were analyzed using analysis of variance, followed by the LSD test at the 5% level. Correlation analysis was used to determine the relationship between two quantitative variables. The results showed that the effect of Zn fertilizer dosage was significantly different on plant height and plant age at first harvest, number of fruit per plant, fruit fresh weight per plant, harvest frequency, and fruit fresh weight per hectare, but not significantly different on plant height and age plants at flowering and the number of branches per plant. The effect of plant spacing was significantly different, on the other hand, the interaction was not significantly different on all observed variables.  The best dose of Zn fertilizer is 6.00 kg ha-1 with fruit fresh weight 25.16 Mg ha-1 and the best plant spacing is 70 cm x 50 cm  with fruit fresh weight 25.18 Mg ha-1.  The results of the correlation analysis showed that fruit fresh weight per hectare had a positive correlation with the number of fruit, fruit fresh weight per plant, and the frequency of harvest with the correlation coefficient (r), respectively 0.7350; 0.8190; and 0.6316, but negatively correlated with plant age at flowering and first harvest, namely -0.2552 and -0.3292.