Hasil Pencarian  ::  Simpan CSV :: Kembali

Abstrak :
Latief AS, Syarief R, Pramudya B, Muhadiono. 2010. Productivity of sugarcane plants of ratooning with various fertilizing treatments. Nusantara Bioscience 2: 43-47. This research aims to determine the sugarcane plants of ratooning productivity with low external input of fertilization treatment towards farmers can increase profits. The method used is the Completely Randomized Block Design (CRBD) with four treatments and three repetitions (4x3). Sugarcane varieties R 579 planted in each patch experiment 5x5 m2. Dosage of fertilizer: P0 = 3.6 kg/year plot experiment was 100% dosage usage of chemical fertilizers used by farmers. Further dosages were P1 (75%) = 2.7 kg/plot, P2 (50%) = 1.8 kg/plot and P3 (0.25%) = 0.9 kg/plot, each supplemented with fertilizer 5 mL of liquid organic/patch a year. Sugarcane crops with a variety of treatment showed no significant difference. The highest productivity was achieved at dosages of P2 (50% chemical fertilizers plus organic fertilizer) is 21.67 kg per square meter. Chemical fertilizers can be saved 7 quintals per hectare a year or Rp 997,500 per year. Additional costs of liquid organic fertilizer Rp.100,000 per hectare year and labor Rp 100,000 per hectare, so the additional advantage of saving farmers fertilizer Rp. 797,500 per year.

Abstrak :
Suharja, Sutarno. 2009. Biomass, chlorophyll and nitrogen content of leaves of two chili pepper varieties (Capsicum annum) in different fertilization treatments. Nusantara Bioscience 1: 9-16. This study aims to determine the influence of various fertilization treatments on biomass, chlorophyll and nitrogen content of leaves from two varieties of chili, Sakti (large chili) and Fantastic (curly chili). The study was conducted in the village of Gatak, Karangnongko sub-district, Klaten District, Central Java in September 2006 to March 2007. The study used a complete block design with two factorial of chili varieties and fertilizer treatment. Fertilization treatments includes no fertilizer (control) (P1); manure 2 kg/plant (P2), manure (1 kg/plant) + chemical fertilizer (ZA, SP-36, KCl = 2: 1: 1) + NPK (P3); and manure (1 kg/plant) + chemical fertilizer (SP-36: KCl = 1:1) + liquid organic fertilizer (P4). Chlorophyll content was measured refers to Harborne (1987), whereas leaf nitrogen concentration was measured with Kjeldahl method. Data were analyzed using ANOVA followed by DMRT. The results showed that on the Fantastic chili fertilizer treatment affected the biomass and chlorophyll a, but gave no effect on chlorophyll b, total chlorophyll and leaf nitrogen. On the curly chili fertilizer treatment effected plant fresh weight, chlorophyll a and total chlorophyll, but gave no effect on dry weight, fresh fruit weight, chlorophyll b and leaf nitrogen. It is, therefore, recommended to use the formulation of manure + chemical fertilizer (SP-36: KCl = 1: 1) + liquid organic fertilizer in the cultivation of chili

Abstrak :
Pemupukan merupakan aktivitas yang sangat penting karena menyita waktu dan biaya yang tinggi dalam proses produksi. Dengan memanfaatkan pemakaian limbah cair kelapa sawit dapat membantu menurunkan pemakaian pupuk. Penelitian ini berfokus pada skenario biaya pemanfaatan limbah cair kelapa sawit untuk pemupukan di SBU Tandun, PTPN V seluas areal 100 ha. Penelitian ini termasuk penelitian kuantitatif. Penelitian ini bertujuan untuk menganalisis pemanfaatan limbah cair kelapa sawit yang dapat mengurangi biaya pemupukan dan menganalisis peningkatan produksi jika menggunakan aplikasi limbah cair kelapa sawit. Model penelitian menggunakan metode statistik One Way ANOVA dan skenario biaya. Pengumpulan data dilakukan dengan cara diskusi dan pengambilan data sekunder. Sedangkan analisis dilakukan dengan merujuk pada hasil yang didapatkan. Untuk melihat seberapa besar keuntungan yang didapatkan perusahaan per kg TBS yang dijual maka dibuatlah skenario biaya pemasukan perusahaan berdasarkan beberapa faktor yang berpengaruh, antara lain : produksi, harga Tandan Buah Segar (TBS), harga pupuk dan biaya produksi. Kendala yang dihadapi antara lain : mahalnya harga pupuk dipasaran, fluktuatifnya harga minyak dunia yang mempengaruhi harga TBS. Hasil penelitian menyarankan agar PTPN V memanfaatkan limbah cair kelapa sawit dengan semaksimal mungkin ke areal perkebunan karena terbukti dapat mengurangi pencemaran lingkungan. ......Fertilizing is highly important activity that consumes excessive amount of time and cost in production process. Alternatively, palm oil mill effluent can be used to help minimize the use of fertilizer in production. My research focus on cost scenario resulted from applying palm oil mill effluent during fertilizy phase at PTPN V Tandun Side Bussiness Unit with total area of 100 ha. This research includes quantitative analysis. The objective of this research is to analyze application contemporary utilization of palm oil mill effluent in agri sector which could actually reduce fertilizing costs and increase fresh fruit bunch (FFB) production. Observation models will be using statistics method. Which done throught One way ANOVA and cost scenario. Data collection and sampling were conducted through direct discussion with estate manager and ground supervisor which supported through cultivation of secondary datas. Result analysis is derived from output generated by the estate. To determine the revenue earned by the company, for each kilo FFB sold. I create cashflow scenario based on the following influental parameters : output, price of FFB, fertilizer costs and production costs. Beside that, external factors such as increase in fertilizer price in the market, global oil price fluctuation also determine the selling of FFB. My research conclude that PTPN V shall maximize utilization of palm oil mill effluent generated from CPO production, since it is proven to reduce production cost and increase output. By managing waste and residual in such a way, PTPN will minimize pollution and becoming go green company.Thus, enhancing its bussiness reputation in the market.