Vegetables and flowers are produced under andisol and alfisol soils with elevations ranging from 350-1500 m above sea level (asl). Potatoe in Indonesia is a plant that has promosing economic value, so farmers are competing to plant the crop. Mountainous lands that were utilized into agricultural land needs to evaluate based on type of land use in order to know the potential of production and the impact of land damage that arises. This research had been conducted in Giritirta, Pejawaran, Banjarnegara, Central Java implemented on July 2017-November 2017. The method used was survei research on land quality with direct field observation, and collecting data from relevant agencies, and survei on farmer response was conducted by interview. Primary data taken was data obtained directly from the object of research through observation, interview with questionnaire, secondary data compiled were data obtained by previous researchers. The results showed that usage for agricultural in the location of the research in the form of cultivation annual crops the usable land with potatoe (Solanum tuberosum L.) as main crop and the technique of planting by aranging the slope with minimum land conservation measures. The level of erosion hazard is classified in very heavy class on all of Land Unit which causes the potential for high land degradation in a short time. The way mitigation to avoiding the damage by implementation on planting coffee arabica and tea in steep land (26%-40%) and quinine in very steep land (>40%). Land improvements made by making and repairing terraces land, strip grass and making rorak. INTISARITanaman sayur-sayuran dan bunga-bungaan banyak dihasilkan di tanah andisol dan alfisol dengan elevasi berkisar antara 350-1500 m di atas permukaan laut (dpl). Kentang di Indonesia merupakan tanaman yang memiliki nilai ekonomis cukup menjanjikan, sehingga petani berlomba-lomba untuk menanam tanaman tersebut. Lahan pegunungan yang sudah dimanfaatkan menjadi lahan pertanian perlu dilakukan evaluasi tipe pemanfaatan lahan guna mengetahui potensi produksi dan dampak kerusakan lahan yang timbul. Penelitian ini dilakukan di desa Giritirta, kecamatan Pejawaran, kabupaten Banjarnegara, Jawa Tengah yang dilaksanakan pada bulan Juli 2017-November 2017. Metode yang digunakan adalah penelitian survei terhadap kualitas lahan dengan pengamatan langsung di lapangan, dan mengumpulkan data-

Demand for food crops was expected to increase substantially, include the vegetable crops. Conversion of farmland in Indonesia to urban development reduces the amount of lands available for crops production. Use of fertilizer, especially chemical fertilizers has brought in soil degradation and the loss of equilibrium of a stable soil. It also decreased the product quality of vegetables crops. Growing vegetable crops in small spaces could take to increase productivity for the long-term. Eco-friendly technologies in vegetable cultivation need to be intensified. In reply to this, organic fertilizers in agriculture will be the right solution for retaining productivity of problem soils, reducing the usage of chemical fertilizers, improving vegetable crops productivity. The study was aimed to determine the effect of the growing media and proportion of goat manure applications on the growth and yield of green mustard. The research had been conducted in Ponjong District, Gunungkidul Regency since March until July 2016. The research was arranged in randomized complete design factorial, consisted of two factors. The first factor was kinds of growing media that consisted of four levels : soil, raw rice husk, rice husk charcoal, and sawdust. Then the second factor was proportion of growing media and goat manure that consisted of three levels : without manures, 2:1, and 1:1. The result of experiment showed rice husk charcoal with proportion of goat manures 1:1 was considered affecting the best performance of plant growth such as increasing plant height, leaves, leaf area, fresh weight, and dry weight of green mustards.

Sandy coastal area in Indonesia is potential for upland rice cultivation, but it has constraints low of nutrient availability such as nitrogen. To solve the low fertility of the sandy land can be done by planting soybean between upland rice under intercropping system due to the soybean is able to provide nitrogen in soil through fixation of N2 in the air by root nodules. Intercropping is an alternative cropping system to increase land productivity, but there is competition between crops under an intercropping system. Reducing of the competition on the system is needed by crops proportion adjustment. The objective of the study is to examine growth and yield component of upland rice at different crops proportion under an intercropping system with soybean in the sandy coastal area. The research was conducted in Samas sandy coastal area, Bantul, Yogyakarta. This research used randomized complete block design (RCBD) with one factor and three blocks. The treatment of this research was five level crops proportion between upland rice and soybean under intercropping system, namely: 100:0; 80:20; 60:40; 40:60; and 20:80, respectively. The results showed that crop growth rate and yield per clump of upland rice increased on crops proportion adjustment under intercropping system with soybean. The crops proportion of 60:40 and 40:60 gave higher crop growth rates that were 1.45 g.dm-2.wk-1 and 1.44 1.45 g.dm-2.wk-1 than upland rice under monoculture (100:0) that was 1.09 g.dm-2.wk-1. The higher crop growth rates in crops proportion of 60:40 and 40:60 were able to give better yield per clump than other that were 17.17 g and 16.46 g, respectively. The yield of upland rice was not different under crops proportion of 100:0, 80:20, and 60:40 and decreased of upland rice proportion until ≤ 40% affected the low yield of upland rice.

Pak choy is a popular crop for a lot of people because it is easily cultivated, short-lived, and it has economic value. Its productivity can be improved by adding organic matters. Aside from providing benefits to crops, the continuous use of organic materials can establish an organic farming system. This research aimed to determine the effects of vinasse and different types of organic fertilizers as well as to obtain the correct combination of the two for the growth and yield of pak choy (Brassica rapa subsp. chinensis (L) Hanelt). It was conducted in November 2015-February 2016 in the agricultural land of the Center for Agricultural Training and Self-help Rural Area, i.e. the Organic Farming of Merapi (P4S TOM) in Balangan, Wukirsari, Cangkringan District, Sleman Regency, the Special Region of Yogyakarta. The experiment used the Randomized Complete Block Design (RCBD) that composed by two factors. The first factor was the quantity of vinasse that consisted of 3 levels: 0 l/ha (V0), 25.000 l/ha (V½), and 50.000 l/ha (V1). The second factor was the types of organic fertilizers that consisted of 4 levels: no organic fertilizer (P0), heart-leaved moonseed (P1), eggshell (P2), and catfish (P3). The combination of 50.000 l/ha of vinasse and without organic fertilizer was able to improve leaf surface area. The combination of 25.000 l/ha of vinasse with no organic fertilizer became the best combination in the pak choy growth and yield.

Salinitas merupakan salah satu faktor yang dapat mempengaruhi hampir semua pertumbuhan tanaman kedelai pada fase vegetatif dan generatif. Pengaruh salin pada berbagai varietas tanaman kedelai berbeda-beda tergantung pada tingkat kepekaan varietas tersebut. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian empat kadar salin terhadap pertumbuhan dan hasil dua varietas kedelai. Penelitian menggunakan rancangan acak lengkap dengan dua faktor (CRD Faktorial) faktor pertama adalah varietas kedelai Grobogan dan varietas kedelai Malika. Faktor kedua adalah kadar salinitas: N0= 0 dS/m, N1=1,17 dS/m, N2=2,34 dS/m, dan N3=3,51 dS/m. Data hasil pengamatan dianalisis menggunakan analisis varian dilanjutkan dengan uji jarak Duncan Multiple Range Test(DMRT) dengan tingkat kepercayaan 95%. Hasil penelitian menunjukkan bahwa dua varietas kedelai mampu bertahan pada kadar salin 1,17 dS/m pengukuran variabel: tinggi tanaman, luas perakaran, luas daun, panjang akar pada varietas Malika, bobot segar daun, bobot kering daun, jumlah polong pertanaman dan jumlah biji pertanaman. Dua varietas kedelai menunjukkan penurunan hasil tertinggi pada pemberian kadar salin 3,51 dS/m. Penurunan hasil pada varietas kedelai Malika adalah 23% jumlah polong pertanaman, 31% jumlah biji pertanaman, 39% berat kering biji , dan 20% berat 100 biji. Sedangkan pada varietas Grobogan terjadi penurunan 18% jumlah polong pertanaman, 17% jumlah biji pertanaman, 26% berat kering biji , dan 11% berat 100 biji.