Productivity of Arenga Pinnata Merr Male Flower Stalks in South Tapanuli Regency Referring to Sustainable Agricultural Systems

This study aims to determine and complete the database related to the productivity level of male palm flower stalks in producing sap in wild populations of natural habitats in the South Tapanuli Regency. The research was conducted in 2 villages in 4 districts with a total sample of 40 palm plants. The stages in this research were carried out in three stages. The first stage is a survey sampling carried out by purposive sampling, namely the sampling technique to be used as a sample based on existing criteria, namely: 1. The shape of the stalk, 2. Color of a stalk, 3. Color of series, 4. Color of sap, 5. Length of stalk, 6 7. Stalk Diameter, and 7. Nira Production Data. The second stage is the data collection on the productivity of male palm flower stalks at all levels of the stem in producing sap. The third stage is a productivity data analysis. The results showed that the productivity of male flower stalks at each stalk level was in accordance with the amount of production and weight of sugar produced. Male flower stalk I have the highest amount of sap production and sugar weight followed by stalk levels II, III, IV, and V. Male flower stalk I have the best productivity of all levels of the male flower stalk, after that there is a decrease in the production of sap and sugar for productivity. Male flower stalks II, III, IV, and V. Productivity of the best male flower stalks produced an average sap production of 968.55 liters/stalk and an average sugar weight of 526.79 kg

Identifikasi Karakter Fenotip Daun Tanaman Aren (Arenga pinnata Merr) di Kabupaten Tapanuli Selatan

Identification Phenotypic Character of the Leaves Palm Plant in South Tapanuli Regency This studyaims to determine the effect of the phenotype character of palm leaf leaves on the production of roomiein wild populations of natural habitats in South Tapanuli Regency. The study was conducted in fivevillages in each oft he four sub-districts in the South Tapanuli district. Two hundred sugar palm plantsoriginating from four natural habitats have been identified in accordance with plant identificationprocedures issued by the IPGRI (International Plant Genetic Resources Institute, 1995) and analyzed.The results show that 4 clusters were formed with 75% similarity or 25% diversity. These results canbe concluded that cluster 1 is the population of palm plants that have the long character of petioleand the highest number of unproductive leaves. Whereas the characters of leaf length and rachis lengthare still lower than the population of sugar palm plants in cluster 4. Cluster 2 is the population of sugarpalm plants that has the highest character of sap production per day. Cluster 3 is a population ofpalm plants that have the highest leaf width character. Cluster 4 is a population of palm plants thathave the highest leaf length and rachis length with the highest number of leaflets and the largest rachiscircumference and petiole circumference. The number of productive leaves and the percentage of sapsugar content above average

Analisis Vegetasi Gulma di lahan Tanaman Jagung (Zea mays L.)

Penelitian Analisis vegetasi gulma di tiga kabupaten di sumatera utara yang telah dilaksanakan pada bulan Maret 2019 dengan meggunakan Alat square ukuran 50 x 50 cm dari hasil penelitian dengan menghitung nilai SDR (Summed Dominance Ratio) menunjukkan bahwa tanaman jagung Kabupaten Simalungun Menunjukkan nilai SDR yang dominan gulma Ageratum conyzoides (61.17%), Deli Serdang gulma Cyperus esculentus (30,15%) dan Karo jenis gulma Imperata cylindrica (27,66%). Hasil Penelitian menunjukkan bahwa ada perbedaan jenis gulma pada tanaman jagung untuk kabupaten Simalungun dan deli serdang menunjukkan jenis gulma yang sama berdaun lebar (Broad leaves) sedangkan kabupaten karo menunjukkan gulma alang-alang (Grasses)

Land Characteristics And Land Evaluation For Development On Other Use Area Rice Fertilizer Plants In District Salak Regency Pakpak Bharat

The opening of new areas should be investigated so that land resources can be used to determine the suitability of the land on certain uses so that APL land use (Other Area of Use) in Salak Sub-district needs to be supported with information on land suitability. The objectives of this study were to evaluate the characteristics of the APL land suitability level, to analyze improvement efforts to increase productivity and to create an actual land suitability map and potential land suitability for Wetland rice on APL land in Kecamatan Salak. The research method used the survey method. Unit of land-based on land map. Research data were analyzed using the matching method. Characteristics of the land in Salak District both physical and chemical properties have very diverse characteristics that can be inhibiting or supporting factors in the development of agricultural crops, especially the development of rice paddy. Temperature regime limiting factor (tc), rooting medium (rc), erosion hazard (eh). Improvement efforts that can be done are pelumpuran, giving of organic material, making of the terrace, and fertilizing. Temperature regime can not be repaired

ANALISIS KUALITAS PUPUK KASCING DARI CAMPURAN KOTORAN AYAM, BONGGOL PISANG DAN AMPAS TAHU

Kascing merupakan salah satu jenis pupuk organik yang dihasilkan dari proses pencernaan dalam tubuh cacing. Jumlah dan bahan pakan yang diberikan mempengaruhi kualitas dan kuantitas dari kascing yang dihasilkan. Penelitian ini bertujuan untuk mengetahui kandungan unsur hara kascing dari campuran kotoran ayam, bonggol pisang dan ampas tahu yang selanjutnya dibandingkan dengan standar kompos SNI-19-7030-2004. Penelitian ini dilaksanakan pada bulan Desember 2021 sampai dengan Maret 2022 di Desa Perlabian, Kecamatan Kampung Rakyat, Kabupaten Labuhanbatu Selatan, Provinsi Sumatera Utara. Penelitian ini dilakukan dengan membudidayakan cacing tanah yang diberi pakan 1 kg kotoran ayam yang telah diencerkan dengan air 500 ml ditambah limbah bonggol pisang sebanyak 500 gr dan ampas tahu 500 gr. selama 4 minggu. Hasil uji menunjukkan bahwa kascing ini memiliki kelembapan sebesar 66,24%, C-Org sebesar 9,759%, N sebesar 2,72%, P sebesar 0,80%, K sebesar 0,29%, C/N sebesar 3,588, Mg sebesar 0,32%, pH sebesar 5,18. Berdasarkan hasil pengujian dapat diketahui bahwa kascing dari campuran kotoran ayam, bonggol pisang dan ampas tahu mengandung unsur hara makro N,P, K yang memenuhi standart kompos SNI, sedangkan untuk kadar air, Corg dan C/N dan pH masih belum me

Growth and production response of plant pakcoy (brassica rapa l) on use of nasa light organic fertilizer

Pakcoy (Brassica rapa L.) or commonly called mustard spoon includes vegetable plants that are heat resistant, so that they can be planted in the lowlands to highlands The production of packcoy plants experiencing ups and downs in 2010 is the peak production of 141.25 quality / ha and continues to decline to 2014 became 114.35 quality / ha. Efforts to increase packcoy production can be done by using organic fertilizers from agricultural waste, manure, green manure, human waste, and compost instead of nutrient sources. This study aims to determine the response of growth and production of Pakcoy plants to the provision of NASA POC organic fertilizer. This study uses factorial randomized block design consisting of 2 treatment factors, namely: Chicken Cage Organic Fertilizer (A) which consists of 3 levels, namely: A0 = 0 tons / ha, A1 = 15 tons / ha (158 g / polybag), A2 = 30 tons / ha (316 g / polybag). NASA POC concentration (N) consists of 4 levels, namely: N0 = 0% (control), N1 = 1 cc / liter of water, N2 = 2 cc / liter of water, N3 = 3 cc / liter of water. The results showed that NASA's POC showed a significant effect on pakcoy plant height, the use of liquid organic fertilizer dosage (2cc / ltr) had a significant effect on plant height. The highest pakcoy plant height is found in the treatment of N2 (2 cc / ltr) of 25.50 cm. The net weight per plot was obtained at the N2 treatment of 262.92 gram

Eksplorasi dan Identifikasi Tanaman Aren (Arenga pinnata Merr) di Kabupaten Tapanuli Selatan

Penelitian ini bertujuan untuk mengetahui keanekaragaman aksesi aren yang tersebar di Kabupaten Tapanuli Selatan dan mengelompokkan populasi seleksi untuk mendapatkan produksi yang tinggi. Delapan puluh aksesi aren populasi alam asal empat kecamatan telah di identifikasi menurut IPGRI (International Plant Genetic Resources Institute, 1995) dan dianalisis. Hasil menunjukkan terbentuknya 4 cluster yang disimpulkan bahwa cluster 1 merupakan kelompok aksesi aren dengan karakter fenotip yang sesuai untuk memproduksi buah dari mayang bunga betina. Sedangkan cluster 3 merupakan kelompok aksesi aren dengan karakter fenotip yang sesuai untuk memproduksi nira (bahan baku gula aren) dari mayang bunga jantan

34 Aplikasi Mikoriza dan Beberapa Varietas Kacang Tanah Dengan Pengolahan Tanah Konservasi terhadap Perubahan sifat Biologi Tanah

Pengolahan tanah terlalu sering dapat menyebabkan tanah menjadi lebih gembur dan terbuka dalam waktu lama, sehingga meningkatkan laju evapotranspirasi dan mengurangi daya pegang tanah terhadap air. mengurangi daya pegang tanah terhadap air. Pemberian pupuk hayati yang mengandung mikoriza merupakan salah satu solusi untuk mengatasi permasalahan tersebut. bermikoriza merupakan pupuk yang mampu bersimbiosis dengan perakaran tanaman dan berfungsi untuk meningkatkan ketersedian PH Tanah dan P dalam tanah. Sehubungan dengan hal tersebut, maka diperlukan penelitian tentang uji efektifitas pupuk hayati berbasis mikoriza arbuskula dalam meningkatkan Total Mikroba ketesersedian P dan meningkatkan pertumbuhan tanaman Penelitian dilaksanakan dikebun Pembibitan Balai Benih Dinas Tanaman Pangan dan Holtikultura Medan pada titik Koordinat N 98042’23,7” dan E 3030’28,3” dengan ketinggian ± 20 m diatas permukaan laut dimulai dari bulan April 2008 sampai dengan Mei 2018. Rancangan penelitian yang digunakan adalah Rancangan Petak Terpisah (Split Plot Design) yang terdiri dari 3 faktor yaitu Faktor Pengolahan Tanah sebagai anak petak yang terdiri dari 3 taraf : No Tillage (T0), Minimum Tillage (T1), Full Tillage (T2), Faktor inokulasi Mikoriza sebagai anak petak terdiri dari 2 taraf : tanpa inokulasi Mikoriza (M0), ipnokulasi Mikoriza (M1). Faktor Varietas sebagai anak-anak petak terdiri dari 3 taraf yaitu : Varietas Lokal (V1). Varietas gajah (V2) dan Varietas kancil (V3). Hasil Penelitian Untuk mengetahui pengolahan tanah dan pengaruh mikoriza serta kombinasi yang terbaik dari sistem pengolahan, penambahan mikoriza dan varietas kacang tanah (Arachis hypogaea L.) yang terbaik bagi peningkatan pH tanah, C-organik, P-tersedia, Bahan Organik Serta Total Mikroba Tanah