RU2007141848A - METHOD OF IRRIGATING AGRICULTURAL CROPS UNDER PLANNED YIELD - Google Patents
METHOD OF IRRIGATING AGRICULTURAL CROPS UNDER PLANNED YIELD Download PDFInfo
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- RU2007141848A RU2007141848A RU2007141848/12A RU2007141848A RU2007141848A RU 2007141848 A RU2007141848 A RU 2007141848A RU 2007141848/12 A RU2007141848/12 A RU 2007141848/12A RU 2007141848 A RU2007141848 A RU 2007141848A RU 2007141848 A RU2007141848 A RU 2007141848A
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Abstract
Способ орошения сельскохозяйственных культур под планируемую урожайность, предусматривающий выбор уровня урожайности сельскохозяйственных культур, определение расчетных величин поливной нормы по предполивному порогу влажности активного слоя почвы в соответствии с планируемой урожайностью, дефицита водного баланса и оросительной нормы полива, отличающийся тем, что при определении дефицита водного баланса суммарное водопотребление рассчитывают с использованием температурных модулей расхода влаги под планируемую урожайность сельскохозяйственных культур, который определяют в два этапа: на первом - за вегетационный период времени, на втором - за расчетный период времени, при этом температурный модуль расхода влаги под планируемую урожайность за вегетационный период времени определяют решением системы уравнений эвапотранспираций: ! , ! где Е - суммарное водопотребление сельскохозяйственных культур за вегетационный период, мм; ! У - планируемая урожайность сельскохозяйственных культур, т/га; ! А и В - постоянные коэффициенты для определенных культур, полученные экспериментальным путем; ! К1 - модуль расхода влаги на 1°С среднесуточной температуры воздуха под планируемую урожайность сельскохозяйственных культур за вегетационный период времени, мм/°С; ! Σt - сумма среднесуточных температур воздуха, необходимая для завершения вегетации, °С, а температурный модуль расхода влаги за расчетный период времени под планируемую урожайность рассчитывают пропорционально значениям в целом за вегетационный период и в расчетных периодах, полученных ранее экспериментальным путем при различных значениях предполивнойA method of irrigation of crops for the planned yield, which involves choosing the level of crop yield, determining the calculated values of irrigation rate by the pre-irrigation threshold of moisture of the active soil layer in accordance with the planned yield, water balance deficit and irrigation irrigation rate, characterized in that when determining the water balance deficit total water consumption is calculated using temperature modules of moisture consumption for the planned agricultural productivity crops, which is determined in two stages: at the first - for the growing period of time, at the second - for the estimated period of time, while the temperature module of moisture consumption for the planned yield for the growing period of time is determined by solving the system of equations of evapotranspiration:! ! where E is the total water consumption of crops during the growing season, mm; ! U - the planned yield of agricultural crops, t / ha; ! A and B are constant coefficients for certain crops obtained experimentally; ! K1 - the module of moisture consumption at 1 ° C of the average daily air temperature under the planned crop yield for the growing season, mm / ° C; ! Σt is the sum of daily average air temperatures necessary to complete the growing season, ° С, and the temperature module of moisture consumption for the estimated time period for the planned yield is calculated in proportion to the values for the whole vegetation period and in the calculated periods obtained previously experimentally for various values of pre-irrigation
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Application Number | Priority Date | Filing Date | Title |
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RU2007141848/12A RU2007141848A (en) | 2007-11-12 | 2007-11-12 | METHOD OF IRRIGATING AGRICULTURAL CROPS UNDER PLANNED YIELD |
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RU2007141848/12A RU2007141848A (en) | 2007-11-12 | 2007-11-12 | METHOD OF IRRIGATING AGRICULTURAL CROPS UNDER PLANNED YIELD |
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RU2007141848A true RU2007141848A (en) | 2009-05-20 |
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RU2007141848/12A RU2007141848A (en) | 2007-11-12 | 2007-11-12 | METHOD OF IRRIGATING AGRICULTURAL CROPS UNDER PLANNED YIELD |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115039676A (en) * | 2022-06-27 | 2022-09-13 | 东方智感(浙江)科技股份有限公司 | Irrigation method and system |
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2007
- 2007-11-12 RU RU2007141848/12A patent/RU2007141848A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115039676A (en) * | 2022-06-27 | 2022-09-13 | 东方智感(浙江)科技股份有限公司 | Irrigation method and system |
CN115039676B (en) * | 2022-06-27 | 2024-03-29 | 东方智感(浙江)科技股份有限公司 | Irrigation method and system |
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