The Function of Accumulation Calculation Software in the Cultivation of Greenhouses
In the process of planting greenhouse vegetables, if the light and heat conditions are unfavorable, the yield will be significantly reduced, and if the other cultivation conditions are the same, the output will be different if the light and heat conditions are different. Identifying the normal growth of cucumber and the light and heat conditions that result in a significant reduction in production can provide scientific management basis for greenhouse production. For the analysis of the photothermal conditions in the greenhouse, the accumulated light calculation software can be used to effectively measure the accumulated light and provide an effective scientific basis for the cultivation of greenhouse cucumber.
According to the greenhouse production and temperature data accurately recorded by the accumulated light calculation software, the solar radiation observation record of the meteorological observatory was used to analyze the relationship between the successive production changes of cucumber and the light-heat conditions of the corresponding time period. It can be seen that during the melon period (May-June) The accumulated light (average daily accumulated light) and cumulative temperature (average daily accumulated temperature) during the interval between two melons (2-3 days) are positively correlated with the current yield, and sometimes affect the next production. The average daily accumulated light and the average daily accumulated temperature for the 6 days before each melon harvest were also positively correlated with the current yield. When other conditions, such as fertilizer and water, are suitable, the accumulative temperature and accumulated light will be above a certain value, and the output will be normal, reaching a certain level, and the peak of output will be calculated as compared with the actual value of the current production. The same applies below. Severe reduction in production. More than 40%.
Accumulation of accumulated light in the greenhouse by cumulative calculation software. The average daily accumulated temperature is less than 360OC in the 3 days before melon harvesting, and is higher than ioOC at night. The accumulated temperature is less than 1600C per day, and the average temperature is less than 10OC per day. Hours or more can cause 15 to 25% of production loss, and severely reduce production by more than 40%. When the accumulated temperature at night is seriously insufficient, despite the fact that there is sufficient light during the day, the accumulated temperature will still cause significant reduction in production. Looking at the light and heat conditions at the peak of production, the average daily light is calculated at 500-600 cal I/cm2 days, and the average daily sunshine hours are more than one. About an hour; the average daily accumulated temperature is above 500oC, and the accumulated temperature above 20oC in the daytime averages above and below 300oC. At night, it is higher than the accumulated temperature of zooc above zooOC, the average maximum temperature is above 30OC, the minimum temperature is around 15OC, and the daytime is above 28oC. The time lasts about 6 hours, and the average daily output of melons is about 500 pounds.
According to the greenhouse production and temperature data accurately recorded by the accumulated light calculation software, the solar radiation observation record of the meteorological observatory was used to analyze the relationship between the successive production changes of cucumber and the light-heat conditions of the corresponding time period. It can be seen that during the melon period (May-June) The accumulated light (average daily accumulated light) and cumulative temperature (average daily accumulated temperature) during the interval between two melons (2-3 days) are positively correlated with the current yield, and sometimes affect the next production. The average daily accumulated light and the average daily accumulated temperature for the 6 days before each melon harvest were also positively correlated with the current yield. When other conditions, such as fertilizer and water, are suitable, the accumulative temperature and accumulated light will be above a certain value, and the output will be normal, reaching a certain level, and the peak of output will be calculated as compared with the actual value of the current production. The same applies below. Severe reduction in production. More than 40%.
Accumulation of accumulated light in the greenhouse by cumulative calculation software. The average daily accumulated temperature is less than 360OC in the 3 days before melon harvesting, and is higher than ioOC at night. The accumulated temperature is less than 1600C per day, and the average temperature is less than 10OC per day. Hours or more can cause 15 to 25% of production loss, and severely reduce production by more than 40%. When the accumulated temperature at night is seriously insufficient, despite the fact that there is sufficient light during the day, the accumulated temperature will still cause significant reduction in production. Looking at the light and heat conditions at the peak of production, the average daily light is calculated at 500-600 cal I/cm2 days, and the average daily sunshine hours are more than one. About an hour; the average daily accumulated temperature is above 500oC, and the accumulated temperature above 20oC in the daytime averages above and below 300oC. At night, it is higher than the accumulated temperature of zooc above zooOC, the average maximum temperature is above 30OC, the minimum temperature is around 15OC, and the daytime is above 28oC. The time lasts about 6 hours, and the average daily output of melons is about 500 pounds.
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