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首页> 外文期刊>Cord >Sustainable Development and Application of Bio - Energy in Coconut Plantations
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Sustainable Development and Application of Bio - Energy in Coconut Plantations

机译：椰子人工林生物能源的可持续发展与利用。

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One hectare of coconut land (156 palms ha~(-1)) planted with gliricidia (2250 trees ha~(-1) into double rows in avenues of coconut), available natural pasture and outside supplied paddy straw coupled with six buffaloes were mixed into a farming modelto examine total productivity and potential of green energy production by wood and biogas. Six buffaloes were maintained in a shed and the manure was collected for biogas generation. Biogas was purified from HaS and the bio fuel was used to run a 0.75 hpengine. Wood of gliricidia was used to energize a 3.5 kW gassifire-engine system for generating electricity. Productivity of gliricidia in the 3rd year was 4.5 kg wood (at 20% moisture) and 3,5 kg of fresh foliage per tree/year. Each buffalo produced anaverage of 622 liters of milk at the first lactation (for a period of 10 months) and value of a calf was Rs. 41244.00 at the age of 17 months. Soils of the model were enriched by adding the effluent of biogas digester. The soil fertility, (N, P, K, Mg,moisture holding capacity) improved significantly over soils sampled outside the model. The effluent of biogas was more fertile than dried buffalo dung. As a result, nut yield of coconut palms increased from 30 to 60 nuts palm~(-1) year~(-1) over a period of two years. In green energy production, the dung of six buffaloes passed through a 0.5 kW biogas-engine system generator produced 2 kwh of electricity per day which if generated by diesel driven generator would require 0.9 liters of diesel. The annual generation of electricity from the biogas amounted to 700 kwh. On the other hand, gliricidia wood of one hectare of coconut land was sufficient to energize 3.5 kW gassifire - engine - generator set for 1600 hours/year and this was equivalent to 5000 kwh of electricity (kWh). Thus, one hectare of coconut/gliricidiaatural pasture/paddy straw with six buffaloes was able to produce green energy equivalent to 5700 units of electricity (kWh) or 2,565 liters of diesel, in addition to farm income derived from coconut, buffalo milk and other benefits of buffalo farming. The total return (coconut, selling of calves, buffalo milk and bio fertilizer) added up to Rs. 704,070 ha~(-1) year~(-1). The feasibility of this model for adoption by small farmers of the coconut triangle in Sri Lanka is presented on the basis of this study.
机译：将一公顷的椰子土地（156公顷棕榈树（-1））与芦苇（2250公顷（-1）树成两排，在椰子林中种植），可用的天然牧场和外部供应的稻草与六只水牛混合在一起进入农业模型，以检验木材和沼气的总生产率和绿色能源生产潜力。在棚子里养了六个水牛，收集粪便以产生沼气。从HaS中提纯沼气，然后使用生物燃料运行0.75 hp的发动机。芒草被用来为一个3.5千瓦的瓦斯火引擎系统供能，以发电。第三年的草菇生产力为每棵树/年4.5千克木材（20％的水分含量）和3.5千克新鲜叶子。每个水牛在第一次泌乳（10个月）时平均生产622升牛奶，小牛的价值为Rs。 41244.00，年龄17个月。通过添加沼气池的废水来富集模型土壤。与模型外采样的土壤相比，土壤肥力（N，P，K，Mg，水分保持能力）显着提高。沼气的废水比干燥的水牛粪肥。结果，在两年的时间里，椰子树的坚果产量从30坚果年（-1）年（-1）增加到60坚果年（-1）。在绿色能源生产中，六个水牛的粪便经过一个0.5 kW的沼气发动机系统发电机，每天产生2千瓦时的电力，如果由柴油驱动的发电机产生，则将需要0.9升柴油。沼气的年发电量为700千瓦时。另一方面，一公顷椰子土地的芦苇木足以为3.5千瓦瓦斯火-发动机-发电机组供能1600小时/年，相当于5000千瓦时的电力（kWh）。因此，除了从椰子，水牛牛奶和牛奶中获得的农业收入外，一公顷的椰子/河西兰/天然牧场/稻草和六个水牛能够产生相当于5700单位电力（kWh）或2,565升柴油的绿色能源。水牛养殖的其他好处。总收益（椰子，犊牛，水牛牛奶和生物肥料的销售）总计为Rs。 704,070公顷〜（-1）年〜（-1）。在这项研究的基础上，提出了该模型可供斯里兰卡的小农采用的椰子三角的可行性。

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