Crop Interval Reports

There are three crop interval reports, a Crop Interval Summary Report, Crop Interval Detail Report and a Crop Interval Period Detail Report. The Crop Interval Summary Report only contains a statistical summarization of the individual management rotation year crop interval data consisting of the mean, standard deviation, minimum and maximum values. Crop Interval Detail Report contains the summarized crop period data results along with the statistical summarization data. The Crop Interval Period Detail Report contains the individual management rotation year-by-year crop period and crop interval data results along with the statistical summarization data for the crop periods and crop intervals. All three reports contain the standard simulation run information in its initial header section, including the names of the input files.

Crops intervals consist of the period following the previous crop's termination until the termination of that crop. For typical row crops, these dates usually correspond to the previous crop's harvest date to this crop's harvest date, assuming the harvest dates. Cropping periods are defined as the period between the previous crops' termination and the planting of the current crop, if this period exists, and is identified as CP_0 in the crop interval reports. The cropping (crop growth) period that refers to crop planting until harvest is identified as CP_1 in the crop interval reports. For multiply harvested crops, such as alfalfa, the additional crop growth/harvest periods are referred to as CP_2, CP_3, etc. If a crop can continue to grow (re-grow) after the final harvest and is not explicitly terminated by that harvest operation, a final cover crop period is defined for that period.

The table heading lists the beginning and the end dates for the periods indicated, the total numbers of days for the period and the name of the crop (for crop intervals) or the operation that concludes the crop period. The individual column labels are:

Full Crop Interval Header

Crop Interval Period Header for CP_0 (Period(s) other than CP_0 match Crop Interval Header)

• Column 1, labeled Biomass, consists of the above ground biomass grown during the period indicated and reported on a dry matter basis in lbs/ac (English units) or kg/m² (SI units).
• Column 2, labeled Rain, consists of the total precipitation received in inches (English units) or mm (SI units) during the period specified.
• Column 3, labeled Irrig, consists of the total irrigation water applied in inches (English units) or mm (SI units) during the period specified.
• Column 4, labeled Runoff, consists of the total surface runoff of water in inches (English units) or mm (SI units) during the period specified.
• Column 5, labeled Drainage, consists of the total drainage of water through the soil profile in inches (English units) or mm (SI units) during the period specified.
• Column 6, labeled Evap, consists of the total soil surface evaporation of water in inches (English units) or mm (SI units) during the period specified.
• Column 7, labeled Crop Transp, consists of the total water transpired through the growing crop reported in inches (English units) or mm (SI units) of water during the specified.
• Column 8, labeled Initial SWC, consists of the initial soil water content in the soil profile reported in inches (English units) or mm (SI units) of water.
• Column 9, labeled Final SWC, consists of the final soil water content in the soil profile reported in inches (English units) or mm (SI units) of water.
• Column 10, labeled SWC Change, consists of the change in soil water content in the soil profile reported in inches (English units) or mm (SI units) of water for the period specified. A negative value means that the stored soil water amount has decreased during the period. A positive value means that the stored water increased during the period.
• Column 11, labeled Runoff Loss, consists of the percent of surface water runoff lost during the period specified.
• Column 12, labeled Drainage Loss, consists of the percent of total water lost through the soil during the period specified.
• Column 13, labeled Evap Loss, consists of the percent of total water lost to surface evaporation during the period specified.
• Column 14, labeled Water use Eff., consists of the percent of total water transpired through the growing crop during the period specified. Note that not all periods contain a growing crop (CP_0), thus not all report sections will display this column.
• Column 14, labeled Water Storage Ratio, consists of the fraction of water stored during a non-crop period (CP_0). It is not displayed for periods consisting of a growing crop and the Water use Eff. value is displayed instead.
• Column 15, labeled Fallow Eff., consists of the total water gained or lost during the period specified and is expressed as a fraction. This term is only useful for periods where there is no crop growing, e.g. a "fallow period" or CP_0 labeled periods in the Crop Interval Detail Report and the Crop Interval Period Detail Report.