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微生态制剂与增氧活水机配合应用于河豚养殖增产增效机理的研究 被引量:10
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作者 李荣福 郭正龙 +6 位作者 孙龙生 刘艳玲 常婷婷 杨显祥 王守红 于瑞奎 秦巍仑 《水污染及处理》 2018年第1期24-37,共14页
水质恶化是引发水产病害、水产品质量安全风险等问题的主要原因,溶氧是养殖水质的核心指标和水产养殖关键因子。为了探索现代水产生态养殖技术,我们开展了将低能耗活水与高效率增氧的增氧活水机与微生态制剂配合使用应用于河豚养殖的试... 水质恶化是引发水产病害、水产品质量安全风险等问题的主要原因,溶氧是养殖水质的核心指标和水产养殖关键因子。为了探索现代水产生态养殖技术,我们开展了将低能耗活水与高效率增氧的增氧活水机与微生态制剂配合使用应用于河豚养殖的试验研究,实现了高效节能和无残留净化养殖水质,均衡溶氧,消除“氧债”,解决了长久以来困扰养殖水体晴日白天底层缺氧、夜晚缺氧和阴雨天缺氧的问题,扩大了养殖空间,延长养殖时间,加速水体物质能量循环,抑制了蓝藻爆发,预防了水产病害,从而达到了提高饲料利用效率和水产动物生长速度,改善水产品品味,实现了降本增效、提质增效和增产增效。试验池比对照池亩增产65.4千克/亩,增产23.4%;饵料系数1.61,比对照塘降低0.15;养殖成本为37.53元/千克,比对照塘低4.33元/千克;亩产值50284元,亩增5354元,增加11.92%;亩净利润26874元,亩增5635元,增加26.53%。并且由于水质改善,基本未使用药物,养成水产品质量安全水平和风味明显提升。 展开更多
关键词 微生态制剂 活水 活水
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Discussion of Fenlong Cultivation Supporting Food and Environment Safety and Broadening Survival and Development Space 被引量:3
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作者 韦本辉 《Agricultural Science & Technology》 CAS 2016年第2期467-470,480,共5页
A new high-efficiency farming method of global significance, Fenlong tech- nique capable of making soil fertile, increasing yield and improving ecological envi- ronment was introduced; and the Fenlong technique could ... A new high-efficiency farming method of global significance, Fenlong tech- nique capable of making soil fertile, increasing yield and improving ecological envi- ronment was introduced; and the Fenlong technique could deeply plough and scarify soil with a depth up to 30-50 cm, which is deeper than the depth of tractor tillage, solving the problem of difficulties in deeply ploughing and scarifying soil and keeping soil loose for muttiple seasons. The application to 20 crops in 18 provinces proved that yield could be increased by 10%-30% without increase in chemical fertilizer, quality could be improved by more than 5%, and water storage could be increased by 100%; yield could be increased for multiple seasons sustainably, and the yield of dry-land crops increased by 32.57%-38.2% from the second year to the fourth year; the net benefits of rice increased by 21.82% averagely from the first season to the sixth season; and the usage amount of chemical fertilizer decreased by 0.35-4.29 kg per 100 kg produced grain compared with conventional tillage, with an decrease amplitude of 10.81%-30.99%. It was discussed that the Fenlong technique could maximize friendly permanently-sustainable unitization of "natural resources" including soil nutrients, water, oxygen and light energy, and has good development potential in multiple fields. It was put forward that if it is popularized in 0.67x108 hm2, pro- ductivity of farmland could be newly increased by 0.1-0.13×10^8 hm2, 5.0 ×10^6 t of chemical fertilizer could be saved, the' storage of agricultural water could be in- creased by 3.0×10^10 m3, and increased food could feed 2,0-3.0×10^8 people. 展开更多
关键词 Deep rotary tillage Fertilizing soil increasing yield and retaining water Increasing yield by 10%-30% Increasing storage of water precipitation by 100% Fenlong cultivation technique
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青蛙高密度养殖法
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作者 周天元 《农村新技术》 1996年第3期30-31,共2页
关键词 高密度养殖 青蛙 蚯蚓 蛋白质饲料 活水增氧 土堆 马蹄金 孵化率 动物性饲料 实用技术
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浅谈青虾苗种放养操作
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作者 孙伟 《科学养鱼》 2002年第3期15-15,共1页
关键词 青虾 苗种放养 牵网捕苗 活水增氧 虾苗成活率
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