No abstract

AbstrakKeberadaan ekosistem hutan rawa gambut di Indonesia terus mengalami gangguan dan kerusakan akibat pola pemanfaatan yang tidak bijaksana seperti terjadinya kebakaran hutan dan lahan. Umumnya kebakaran tersebut berasal dari adanya kegiatan manusia seperti penggunaan dan perubahan tutupan lahan. Kawasan Lindung Hutan Rawa Gambut Semenanjung Kampar termasuk salah satu ekosistem hutan rawa gambut terbesar di Pulau Sumatera. Peranan utama dari kawasan ini sebagai penjaga kestabilan lingkungan terhadap kawasan sekitarnya. Tujuan dari penelitian ini adalah untuk mengetahui tingkat dan status serta faktor-faktor kunci yang mempengaruhi keberlanjutan pengelolaan ekosistem hutan rawa gambut terhadap kebakaran hutan dan lahan dengan menggunakan pendekatan Multi-Dimensional Scaling. Mengacu kepada hasil penelitian secara keseluruhan indeks atau status keberlanjutan berada pada kriteria sedang (45,81%) atau status cukup berkelanjutan. Secara parsial untuk masing-masing dimensi yang memiliki status cukup berkelanjutan adalah ekonomi, teknologi dan hukum, sedangkan dimensi ekologi dan sosial kurang berkelanjutan sehingga perlu mendapatkan perhatian serius.Kata kunci: gambut, kebakaran, skala, Kampar. Abstract

This research was conducted in the Experimental Field, Faculty of Agriculture, Riau Islamic University and Soil Laboratory, BPTP Riau Province from August to December 2007. The research aim to study the effect of Cu 2+ , Zn 2+ , Fe 3+ ameliorant addition in peat to N, P, K uptake and rice yield of various varieties. The experimental with Completely Randomized Design for Factorial 4 x 4 were used. The first factor was ameliorant addition, consists of four levels (Cu 2+ ; Zn 2+ ; Fe 3+ ) and second factor based on varieties, consists of four levels (PB-42, IR-64, Ciherang, Cisantana). The result of research indicates that: (1) Interactian effect of treatment was significant to N, P, K uptake, productive stem, weight of dried seed, and weight of 1000 seeds, (2) The best treatment was Cu 2+ ameliorant on IR-64 with uptake of N ( 254,0 mg/plant), P (32,8 mg/plant), K (76,0 mg/plant), productive stem (30,0 stems/plant), weight of dried seed (63,9 g/plant), weight of 1000 seeds (23,7 g).

ABSTRACT   This research was carried out at the Experimental Garden of the Faculty of Agriculture, Riau Islamic University, Pekanbaru, from April to July 2019.  The purpose of this study was to determine the effect of the interaction and main fertilizer of Petroganik and Grand K on the growth and production of peanut plants. The method used was a Completely Randomized Design which consisted of two factors. The first factor was P (Petroganik) and the second factor was K (Grand-K), each of which consisted of 4 levels of treatment so that there were 16 treatment combinations. Each treatment consisted of 3 replications, so there were 48 experimental plots, consisting of 12 plants and 3 plants as observational samples with the total number was 576 plants. Data from the latest observations were analyzed by variance (ANOVA) and further tested with the significant difference in honesty (BNJ) at the 5% significant level. The results showed the interaction of Petroganik and Grand-K fertilizers significantly affected plant height, relative growth rate and weight of 100 seeds. The best combination of treatment in the application of Petroganic fertilizer was 81 g/plot and Grand K fertilizer was 14 g/plot (P3K2). The main effect of real Petroganik fertilizer on all parameters of observation with the best treatment was the application of Petroganic fertilizer as much as 81 g/plot (P3). The main effect of Grand K fertilizer was significant on all parameters observed with the best treatment was the application of Grand K fertilizer of 14 g/plot (K2).

The study aimed to determine the effect of interaction between palm oil mill and organic NPK liquid waste doses on the growth and production of Suri Cucumber plants. The design used in this study was a Factorial Completely Randomized Design consisting of 2 factors. The first factor is palm oil mill effluent with a dose of 0, 100, 200, 300 ml/plant while the second factor is organic NPK with a dose of 0, 5, 10, 15 grams/plant. The parameters observed were flowering age, age of the first harvest, number of fruit crops, the weight of fruit per fruit, weight of fruit per plant. The last observation data were analyzed statistically and continued with a BNJ follow-up test at the level of 5%. The results showed that interactively the administration of palm oil mill effluent and organic NPK fertilizer gave a significant effect on fruit weight per fruit and fruit weight per Suri cucumber plant. The best treatment is a combination of 300 ml/plant palm oil mill effluent and 15 g / plant organic NPK fertilizer (L3N3). The main effect of giving palm oil mill effluent has a significant effect on flowering age, harvest age, number of fruits per plant, fruit weight per fruit and fruit weight per Suri cucumber plant. The best treatment is by giving 300 ml/plant palm oil mill effluent (L3). The main effect of giving organic NPK fertilizer significantly affected flowering age, harvest age, number of fruits per plant, fruit weight per fruit and fruit weight per Suri cucumber plant. The best treatment is by administering 15 g of organic NPK / plant (N3).