Amount of weight accumulated by all the organs of the plant.
Amount of weight accumulated by all the organs of the plant.
Period of time measured in days, from physiological maturity to harvest.
The days to harvest correspond to the number of days between the sowing of the seeds until the harvest of the crop. For example, between 100 and 150 days are calculated between planting and harvesting corn. This information allows to calculate the harvest time. In the case of the agro-climatic or yield forecast, the potential yield is calculated from the sowing date, assuming a standard day number until the harvest.
Evapotranspiration corresponds to the amount of soil water that returns to the atmosphere as a result of the evaporation of water from a moist soil and the perspiration of growing plants. Evapotranspiration is measured in millimeters per day (mm / day), and is used to calculate the need for irrigation in a crop. Evapotranspiration (also called the water requirement of a crop) depends on the climatic conditions of a geographical area.
In the case of an agroclimatic forecast, the confidence interval corresponds to the value range (for example, between 5 kg / ha and 6kg / ha) within which there is more certainty that the forecast is accurate (occur).
Precipitation corresponds to the amount of water that falls (rain, hail) on the soil surface. It is measured in millimeters (1 mm equals 1 liter of water per square meter) using the total water collected in a rain gauge in 24 hours. The daily amounts are added per month and per year, thus determining the average rainfall (rainfall, hail) obtained over a considerable number of years (more than 30 years, in general) of an area.
Daily amount of rainfall added over time, it may be useful to have this value per month, per semester or per year.
Weather forecast models are essential tools for the study and progress in predicting climate variability. The 6-month seasonal climatic predictions on precipitation are made with a statistical model, which is based on identifying the modes of variability of the climate system and their association with ocean-atmospheric variables. This product is useful to have a reference of the most likely behavior to occur, but it is necessary to clarify that it does not consider specific and short-lived extreme events that may take place in some specific areas of the country. The probability forecast is expressed as a percentage and represents the probability of the precipitation condition occurring in three categories:
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Solar radiation is used by plants to perform photosynthesis. The final potential production of a crop (expressed as total dry matter) depends in part on the amount of the level of uptake by the plant. To obtain high rates of photosynthesis and higher yields it is necessary to maximize the interception of light.
The yield corresponds to the total production of a crop harvested and is usually measured in tons per hectare (T.M./ha.). The same variety can generate different yields from one geographical location to another by varying climatic conditions, even if the other environmental factors are the same. However, with the same climatic conditions, the yield can vary according to the characteristics of the soil or the given management.
Maximum yield that a variety, hybrid or cultivar can produce under ideal conditions.
The temperature is recorded by thermometers, and measured in degrees centigrade. Thus, the maximum temperature is the highest value (maximum heat) recorded in a given time interval. In one day, it usually corresponds to noon.
Amount of heat, measured in degrees Celsius of the highest values, over several days or months.
The temperature is recorded by thermometers, and measured in degrees centigrade. Thus, the minimum temperature corresponds to the lowest value recorded in a given time interval. in a day it usually corresponds to the hours of the morning.
Amount of heat, measured in degrees Celsius of the lowest values, over several days or months.