Effectiveness Kenikir and Betle Leaft Extraction as Biofungicide to Cause Disease Antraknosa (Colletotricum capsici) On Chili (Capsicum annuum) in In vitro. The research was done in the Laboratory Protection Plant Agriculture Faculty University of Medan Area, was held since Mei to July 2018. The research use Design Random Complete (RAL) Non Factorial with treatment F0 = negative control (PDA Media 100 %) F1 = Positive control (Synthetic fungicide 0.2%), F2 = 20% kenikir+ 10%betel, F3 = 30 % kenikir+ 10%betel,, F4 = 40% kenikir+ 10%betel, F5 = 20% kenikir+ 20%betel, F6 = 30 % kenikir+ 20%betel, F7 = 40% kenikir+ 20%betel, F8 = 20% kenikir+ 30%betel, F9 = 30% kenikir+ 30%betel, F10 = 40 % kenikir+ 30%betel. The results of the study: the tested extract of kenikir and betel leaf leaves showed the same results for inhibiting the growth of colony diameter and percentage of fungi growth.

Research aims To determine the effectiveness of skin extract jengkol (Pithecellobium jiringa) effective as biofungisida against the disease-causing Fusarium wilt (Fusarium oxyospurum), Antraknosa (Colletotrichum capsici) and patches leaf (Cercospora capsici) on a red pepper plant (Capsicum annuum L.),This research was conducted at the Laboratory of Plant Protection, Faculty of Agriculture, University of Medan Area, Biopharmaceutical Laboratories Faculty of Pharmacy, University of North Sumatra, from March to May 2019. This research used non factorial completely randomized design with three replications. Factors treatment of skin extract concentration jengkol ie negative control (no treatment); positive control (synthetic fungicides 0.2%); and successive concentration is 10%; 20%; 30%; 40%; 50%; 60%; 70%; 80%; 90%; and 100%. The results showed that administrationjengkol skin extract effective for controlling fungal pathogens (Colletotrichum capsici, Fusarium oxysporum and Cercospora capsici) that cause disease in plants red chili.Jengkol bark extract at a concentration of 90% obtained the highest percentage inhibition Fusarum oxysporum as big as 78.43% Highly significant with bark extract treatment jengkol 10% and a negative control (no treatment), at a concentration of 20% jengkol skin extract obtained the highest percentage inhibition of Colletotrichum capsici 82.49% Highly significant with bark extract treatment jengkol 10%, negative control (no treatment) and at a concentration of 50% jengkol skin extract obtained the highest percentage inhibition Cercospora capsici as big as 83.43% Highly significant with bark extract treatment jengkol 10%, 20% jengkol bark extract, bark extract jengkol 30% and analytical results.

Peluang kebutuhan akan sayuran berkualitaas sangat terbuka dengan makin banyaknya masyarakat yang berbelanja ke pasar swalayan. Diversifikasi jenis sayuran perlu dilaksanakan untuk memenuhi berbagai permintaan pasar. Hingga saat ini jenis sayuran yang banyak dibudidayakan secara aeroponik antara lain berbagai kultivar selada (lettuce keriting hijau, cos/romaine, butterhead, batavia, lollo rossa, iceberg, head lettuce), pakchoy hijau dan putih, caysim, dan kailan serta horenzo yang baru mulai dikembangan. Kangkung dan bayam juga dapat diusahakan secara aeroponik.  Tujuan dari penelitian ini untuk melihat bagaimana pengaruh pemberian pupuk organik cair terhadap pertumbuhan dan produksi tanaman sayur-sayuran dengan sistem aeroponik. Metode penelitian yang digunakan adalah Rancangan Acak Lengkap (RAL) Faktorial, yaitu: 3 x 4 dengan 3 kali ulangan dan setiap ulangan terdiri dari 3 konsentrasi. Berdasarkan penelitian yang telah dilakukan dapat di simpulkan bahwa pemberian pupuk cair Herbafarm tidak memberikan pengaruh yang nyata untuk semua jenis tanaman yang ditanam (sawi, kangkung, bayam).

The study aimed to determine the response of growth and production of peanuts to the provision of goat manure and banana hump liquid organic fertilizer. This study used a Randomized Block Design (RBD) with 3 replications. Factorial consisting of II treatment factors, Factor I treatment of giving goat manure and Factor II, the treatment of Hump Banana POC treatment The parameters observed in this study; Plant height (cm), number of branches (branches), number of pods per sample (fruit), wet weight of production per sample (g), wet weight of production per plot (g), production dry weight per sample (g), and dry weight Production Per Plot (g). The results showed that goat manure had an effect on growth but did not affect the production of peanut plants, liquid organic fertilizer of banana humps had an influence on the growth and production of peanut plants, Combination of goat manure and banana hump liquid organic fertilizer had no significant effect on growth and production of peanut plants.

Cowpeas is becoming rare, hence it has to be planted again to some reasons. This research aims to know the growth and production of cowpeas with Bokashi use of sugarcane filter cake and liquid organic fertilizer pineapple skin that have been implemented at the Faculty of Agriculture Experimental Station Road PBSI Area Terrain 1 Terrain Estate, District Percut Sei Tuan from March to July 2019. Methods the research in this research is a randomized block design factorial, with 2 (two) treatment factors, namely: 1) factors bokashi cane filter cake (T) and Organic Liquid Fertilizer Factors pineapple skin (S), each treatment was repeated 2 times so that there are 32 experimental plots. Each experimental plot consisted of eight plants with four plant samples. The results of this research indicate that the use of Bokashi blotong cane very significant effect on the number of pods persample but did not significantly  affect  stem  diameter,  length  of  pods  persampel,  heavy  pods persampel and production perplot, fertilizer liquid organic pineapple skin very significant effect on the number of pods persampel, but did not significantly affect stem diameter, persampel pod length, pod weight and production persampel perplot, a combination of the use of sugarcane filter cake bokashi organic fertilizer liquid and pineapple skin no real effect on the growth and yield of cowpeas.