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Guildford, United Kingdom

He J.,Ningxia University | Tian J.,Ningxia University | Tian J.,Modern Water
Paiguan Jixie Gongcheng Xuebao/Journal of Drainage and Irrigation Machinery Engineering | Year: 2015

To probe the relations of water and fertilizer with the yield, the field experiment on the mo-del of water and fertilizer coupling of rice cultivated in aerobic soil by mulch drip irrigation was carried out by a current rotary combination design, and its application prospect was comparatively analyzed. The relation between irrigation quota, nitrogen, phosphorus and rice yields was in line with the ternary quadratic regression model under the tested soil by mulch drip irrigation. The regression coefficients of the first term, the second term and the water-nitrogen interaction term have extremely significant le-vel. The roles of increasing yields of the three factors were in order as follows: irrigation quota> nitrogen>phosphorus. There was a highly positive correlation between the estimating yields calculated by the model and harvest yields, of which predictive accuracy was up to 99%. Thus the irrigation quota and fertilizer application with maximum yield and their maximum yields were calculated by the regression model. On the basis of this, the optimum schemes of water and fertilizer to achieve target yields were proposed. If target yields were 9 300-9 600 kg/hm2, the irrigation quota, nitrogen and phosphorus application were from 9 730-10 500 m3/hm2, 272-363 kg/hm2 and 136-147 kg/hm2, respectively. If the economic benefits were considered, the optimum irrigation quota, nitrogen and phosphorus application were 8 500-9 015 m3/hm2, 225-240 kg/hm2 and 90-120 kg/hm2, respectively. The results from the different planting patterns show that the yields of rice cultivated in aerobic soil by mulch drip irrigation are hardly different from those by the irrigation after direct seeding, which has roughly the same production costs as the rice seedlings transplanting cultivation, however, of which water use efficiency is much higher than that of the other three planting patterns(about 1.06 kg/m3 on average). When compared with the conventional transplanting seedlings cultivation mode, the planting way to rice cultivated in aerobic soil by mulch drip irrigation saves about 50% water and about 30% fertilizer. ©, 2015, Editorial Department of Journal of Drainage and Irrigation Machinery Engineering. All right reserved. Source


Zhang J.-Z.,Xinjiang Agricultural University | Tumarebi H.,Xinjiang Agricultural University | Wang Z.-H.,Modern Water
Procedia Engineering | Year: 2012

In order to study consumption principle of cotton under drip irrigation with film, the paper adopted plot experiment, designed comprehensive combination tests combining four irrigation quotas (330mm,390mm,450mm,510mm) with three irrigation times (10 times, 13times, 16 times), analyzed cotton consumption characteristic of different irrigation quotas under drip irrigation with film, the results show that cotton consumption intensity in seeding period is between 1.39 and 2.15mm/d; consumption intensity in bud period is 2.58 and 5.29mm/d; consumption intensity in blooming period is 4.35 and 6.38mm/d; and consumption intensity in boll opening period is 1.03 and 2.78mm/d. Cotton consumption is closely related to irrigation quota under drip irrigation; under the same irrigation times, the larger the irrigation quota is, the larger the consumption, consumption modulus and consumption intensity in each stage are. The studied results will offer important basis for designing cotton irrigation system under drip irrigation with film. © 2012 Published by Elsevier Ltd. Source


Wang Z.-H.,Modern Water | Lei C.-X.,Shihezi University
ICAE 2011 Proceedings: 2011 International Conference on New Technology of Agricultural Engineering | Year: 2011

Based on six measured hole to experiment, to study the influence of different transplantation time on cotton growth and yield under subsurface drip irrigation, in order to determine suitable transplantation time, during the transplantation time the suitable daily average temperature is 18.4∼20°C, daily highest temperature is 26.2∼27.2°C, apart from the ground 10 cm the daily average geotemperature is 20.92∼22.22°C, daily highest geotemperature is 27.5∼28.1°C; apart from the ground 15 cm the daily average geotemperature is 20.26∼21.41°C, daily highest geotemperature is 24.6∼25.1°C; after transplanting ten days the lowest daily temperature effective effective accumulated temperature is 66.46∼70.65°C, the highest daily temperature effective effective accumulated temperature is 78.08∼83.28°C, the daily geotemperature effective accumulated temperature is 104.72∼106.71 apart from the ground 10cm, which offers reference for the development of subsurface drip irrtigation. © 2011 IEEE. Source


Wei C.,Shihezi University | Li M.-S.,Modern Water
ICAE 2011 Proceedings: 2011 International Conference on New Technology of Agricultural Engineering | Year: 2011

Directed at the application conditions of field water-saving irrigation technology and the existed problems of transportation engineering, in combination with the topography, climate of Xinjiang and requirements of the field micro sprinkler technology on the water quality, pointing out the advantageous application conditions and its necessity of developing pipeline transportation and distribution water irrigation systems, introducing development conditions and obtained benefits of domestic and abroad pipeline transportation and distribution water irrigation systems, putting forward the resolved problems and the related benefits of developing pipeline transportation and distribution water irrigation systems, which offers reference meanings for water-saving irrigation development policy of Xinjiang and similar districts. © 2011 IEEE. Source


Trademark
Modern Water | Date: 2012-10-15

Chemicals, bacterial cultures, and biochemical, immunoassay and diagnostic reagents used in industry and science; Chemical preparations and products for the desalination and purification of drinking water, and the testing of water and waste water for toxicity, trace metals and environmental contaminants; Water treatment chemical and biochemical reagents, oxidizing, coagulation and flocculation agents and preparations for scientific purposes; bacterial cultures and chemicals for use in assaying, environmental water testing used in industry and science; diagnostic kits consisting primarily of bacterial cultures, immunoreagents, and chemicals for use in the monitoring of toxicity of water, used in industry and science. Scientific instruments and analyzers for directly detecting toxicity, trace metals, contaminants and environmental pollutants; bio-sensors for detecting toxic substances, trace metals and environmental contaminants in relation to scientific and research use; electronic instruments for measuring and monitoring toxicity in the nature of trace metals, contaminants and environmental pollutants in water and soil; scientific instruments for measuring, testing and detecting contaminants and environmental pollutants in drinking water, waste water, soil, and solid matter; electronic monitoring instruments, other than for medical use, namely, luminometers, colorimeters, photometers, and fluorometers; apparatus for use in assaying, namely, cuvettes, pipettes, pipette tips, beakers, racks, volumetric flasks, filters, and non-medical aspirators; Electrocoagulation apparatus for the purpose of removing trace metals, general toxicity and contaminants in water for use in industry and science; analytical testing systems, namely, luminometers, photometers and colorimeters and laboratory accessories therefore, namely, cuvettes, pipettes, and non-medical aspirators, all for the detection and measurement of toxicity in liquids and solids; Computer software for equipment operation and data reduction and display, for use with the aforesaid goods. Water and waste water treatment apparatus, installations and plants, namely, reverse osmosis units, forward osmosis units, water filtration units, membrane filtration units, water sterilization units, water purifying apparatus, water and wastewater concentration units, water recovery units, water desalination plants, sewage treatment plants; desalination apparatus, installations and plant, namely, water desalination units and plants, intake systems, pre-treatment systems, membrane desalination units, thermal desalination units and post-treatment systems; sewage treatment apparatus, installations and plant, namely, thickening and dewatering machines for use in treatment of liquids including water, industrial effluent and sewage, apparatus and installations for decomposing toxic substances in water, sewage treatment plants, biological treatment units, chemical treatment units, filtration units, aeration units and membrane treatment units; water supply apparatus, namely, water purification, sedimentation and filtration apparatus for clarification, thickening and filtration of water, waste water and industrial water, regulating accessories for water supply, namely, metered valves and pipes. Construction, installation, maintenance and repair of water, waste water and solid waste testing, treatment and monitoring apparatus and equipment and of facilities and plant for the testing, treatment and monitoring water, waste water and solid waste; construction, installation, maintenance and repair of desalination apparatus, installations and plant; consultancy services relating to the aforesaid. Water treatment and purification services; waste water treatment and water recycling services; water desalination services; Water reclamation services; recycling of waste, namely, recovery of materials from liquids and solids. scientific and technological services and research and design relating thereto in field of desalination and purification of drinking water, and the testing of water and waste water for toxicity, trace metals and environmental contaminants; industrial analysis and research services relating to the desalination and purification of drinking water, and the testing of water and waste water for toxicity, trace metals and environmental contaminants; environmental monitoring of water quality, presence of trace metals, toxicity and environmental contaminants; environmental analysis and monitoring of water quality in relation to presence of trace metals, general toxicity and contaminants in water; Scientific and technological services, namely, toxicity analysis in the field of environmental monitoring of water quality, presence of trace metals, toxicity and environmental contaminants.

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