Báo cáo khoa học nông nghiệp " Irrigating rice crops with waste water to reduce environmental pollution from catfish production in the Mekong Delta " doc

... rate, they risk decreasing rice yield when applying wastewater due to increased risk of crop lodging. Such experiences have been reported to discourage farmers in the past from irrigating with wastewater. ... While in one survey in An Giang higher yields were obtained in fields irrigated with wastewater, in most cases the savings to farmers from reduced fer...

Ngày tải lên: 21/06/2014, 04:20

... (3) Stock the selected higher value species into the recirculating aquaculture systems. (4) Establish the environmental monitoring protocol and collect the relevant data on water quality in ... of the farmers practicing traditional VAC systems. This is achieved by improving the productivity and thus the income from the traditional VAC system in an environmental...

Ngày tải lên: 21/06/2014, 04:20

... Constraints Two alterations to the original project proposal were necessary, one being the proposed commencement date for the project and the second being the change in the personnel from CEDMA, ... diversifying the production base so that disease, production and marketing risks are minimised. The established environmental protocol will also help householders...

Ngày tải lên: 21/06/2014, 04:20

... and the remainder were farmers. The outcomes from the meetings included that there be an emphasis on minimizing the financial investment from farmers for the construction and operation of the ... before release into ponds and gardens and the introduction of high valued species. Introducing earthworms to the system has potential to increase the environmental sust...

Ngày tải lên: 21/06/2014, 04:20

... container floor plays an important role in maintaining the quality of the culture medium. It is suggested that the floor should be made of cement-sand or plastic to maintain moisture, protect from ... eels in the Trieu Hoa system died one month after stocking the tank. The system was subsequently restocked with snake head. The production status of the Quynh Lu...

Ngày tải lên: 21/06/2014, 04:20

... Binh); 3. The continued environmental monitoring of the new VAC systems will be linked closely into the National Mission for Aquaculture Environment and Disease Monitoring; 4. The training ... 17 other farmers with fingerlings from his new RAS system. Together with this, local authorities have realized the potential of the model and thus planed to support farmers...

Ngày tải lên: 21/06/2014, 04:20

... R&D and inoculant production . This will continue during 2008 with additional training in inoculant production technologies in Thailand and in rhizobial R&D training in Australia. Further ... and in the Baseline Information Report, submitted May 2008. 5.1.1.6 Training in inoculant production and QA There were no specific training programs during the reporti...

Ngày tải lên: 21/06/2014, 04:20

... highlands in the North, to the Central Coast area to the highlands in the South and Mekong Delta. The provinces involved were Son La, Nghe An, Binh Dinh, Binh Thuan, DakLak, DakNong, Tay Ninh, Dong ... be supplied annually from the independent QA laboratory to private and public sector laboratories producing inoculants together with protocols for strain mainten...

Ngày tải lên: 21/06/2014, 04:20

... carbon in soils after harvesting rice in fields with and without application of wastewater to crops. Chau Phu Phu Tan Soil properties + waste water - waste water + waste water - waste water ... expressed the intention to increase production in the future. Notwithstanding their concern about water quality, few expressed an intention to construc...

Ngày tải lên: 21/06/2014, 04:20

... %. Total catfish production in the Mekong delta has increased sixfold from 400,000 tonnes in 2004 to over 1.5 million tonnes in 2007 from ponds that cover about 5,000 ha in the Mekong delta, ... sufficient to maintain sustainable rice production even in the case where rice straw was fully returned to the paddy fields. Nitrogen balances in the...

Ngày tải lên: 21/06/2014, 04:20