Indonesia memiliki peluang untuk mengembangkan tanaman sayur-sayuran yang banyak bermanfaat bagi manusia. Sehingga ditinjau dari aspek klimatologis Indonesia sangat tepat untuk dikembangkan budidaya sayuran secara organik yaitu dengan memanfaatkan biomasa dari sisa-sisa tanaman berupa “Biochar dan pupuk Bregadium”. Penelitian tentang pengaruh pemberian biochar dan pupuk bregadium terhadap pertumbuhan dan produksi tanaman sawi hijau <em>(brassica pekinensia </em><em>L)</em> dilaksanakan di kebun percobaan Universitas Medan Area yang dimulai dari bulan Juli sampai bulan September 2013. Tujuan penelitian ini untuk mengetahui pengaruh pemberian Biochar dan pupuk Bregadium Nutritions Gel UX-88 yang terbaik terhadap pertumbuhan dan produksi tanaman sawi hijau. Percobaan ini menggunakan Rancangan Acak Kelompok (RAK) dengan 9 kombinasi perlakuan dan di ulang sebanyak 3 ulangan. Hasil penelitian ini menunjukkan Pemberian biochar memberikan pengaruh yang nyata untuk parameter tinggi tanaman, jumlah daun, luas daun, tanaman sampel, berat tanaman per plot untuk parameter berat akar tanaman sampel dan berat akar tanaman per plot menunjukan tidak berbeda nyata , sedangkan untuk Pemberian pupuk cair bregadium memberikan pengaruh yang tidak nyata untuk semua parameter yang diamati tinggi tanaman, jumlah daun, luas daun, tanaman sampel, berat tanaman per plot,berat akar tanaman sampel dan berat akar tanaman per plot.
Tujuan penelitian ini untuk mengetahui pengaruh pupuk kandang sapi dan Super Bokasi AOS Amino memberikan pengaruh yang baik terhadap pertumbuhan dan produksi kacang hijau. Penelitian dilakukan di kebun percobaan Fakultas Pertanian Universitas Medan Area yang berlokasi di jalan Kolam No.1 Medan Estate. Penelitian ini di laksanakan bulan Mei sampai bulan Juli 2015, menggunakan Rancangan Acak Kelompok (RAK) Faktorial, dengan dua ulangan, 16 kombinasi. Faktor pertama yaitu pupuk kandang sapi yaitu S0 = tanpa pupuk kandang sapi, S1 = pupuk kandang pada dosis 2,25 kg per plot, S2 = pupuk kandang sapi pada dosis 4,5 kg per plot, S3= pupuk kandang sapi pada dosis 6,75 kg per plot. Faktor kedua adalah Super Bokasi AOS Amino yaitu A0 = Tanpa pemberian AOS Amino, A1= AOS Amino pada konsentrasi 0,375 %, A2 = AOS Amino pada konsentrasi 0,75 %, A3= AOS Amino pada konsentrasi 1,13 %. Hasil penelitian menunjukan bahwa perlakuan dosis pupuk kandang sapi ( S ) nyata meningkatkan tinggi tanaman, jumlah daun, dan berat basah per 100 biji tanaman sampel kacang hijau (Vigna radiata L.) varietas vima-1.Perlakuan konsentrasi pupuk super bokasi AOS Amino (A) nyata meningkatkan tinggi tanaman dan jumlah daun kacang hijau (Vigna radiata L.) varietas vima-1. Serta perlakuan dosis pupuk kandang sapi dan konsentrasi pupuk super bokasi AOS Amino (SA) nyata meningkatkan tinggi tanaman dan jumlah daun kacang hijau (Vigna radiata L.) varietas vima-1.
Black corn has its advantage compare to regular corn due to the nutrition component. This could lead the increase of demant to this corn variety. The Effect of providing various biochar sources and various manure on the growthand production of Zea mays black maiz L. The study used factorial randomized block design with two factors, namely the provision of various biochar sources which was combined into several organic fertilizer. Parameters observed were plant height, stem diameter, number of leaves, wet production weight/sample using klobot, wet production weight/plot using klobot,wet production weight/sample without klobot, wet production weight/plot without klobot, dru production weigh of pipil/sample, dry weight of production of onehundred grain pipil. The results of the study showed that the effect of giving various biochar of rice husk corn cobs of candlenut shells did not signficantly affect all observation parameters and various manure, namely cows, chickens and goats also did not significantly affect all observed parameters.
Efforts to increase the income of the PKK KWT group in Sei Rotan village are carried out by the Tridarma activity of higher education. The objectives of the service activities include increasing efforts to maximize house yard land management efforts by cultivating horticultural plants in the yard, and increasing the knowledge, understanding and skills of the community on hydrophonic plant cultivation techniques in the PKK KWT group community, Sei Rattan Village, Percut Sei Tuan District, and to improve community income which is classified as fitting to meet daily life, the implementation method applied is by conducting training and mentoring, in the training activities training is carried out: Hydrophonic Cultivation Training vertically and horizontally, Technical culture training for HEALTHY Horticulture plants through hydrophonic seeds, while in Mentoring: Guidance and Community Development who have started to apply technology, Discussion and Evaluation. the results of the activities based on the transfer of knowledge obtained a statement 60% of the community's responses strongly agree, 30% agree, increasing community knowledge after training obtained very good data 25%, good 60% and good enough 9%, and not good 0% and responses Satisfaction with PKM activities shows the data is very useful 42% and useful 52% and quite useful 2% and 0% which states not useful. The three categories of community responses show that the activities that have been carried out show that it is very important for the community to consider community knowledge and skills that are very useful for improving the quality of these farmer groups.
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