Harvest module

This module contains questions about harvest activities.

harvest_date (d): Harvest date of in
harvest_days (a) : Harvest days calculated
```
Calculation : date() - date()   
```
harvest_method (s) : Harvesting method of in
```
Choices: Combine, Reaper, Manual
```

crop_residue (s): crop residue was-

Choices: Removed from the field, Retained in the field,B urnt in the field

threshing_method (s) : If reaper or manual, threshing method in

Choices: Manual,Machine
Relevant: if reaper or manual threshing  in harvest method

total_production_lp (d): Total yield from in QUINTAL (self reported)
qunital_per_acre (a) : Qunital per acre calculated based on previous entries
```
Calculation: round( div ${cropLarestAreaAcre}, 2)
```
ton_per_hc (a):

Calculation: round(( * 2.5) div 10, 2)
avg_farm_gate_price (d): What was the farm gate price per quintal for at the time of harvest? (Rs / Taka per quintal)
production_compare_5_years (s) : How is the production compared of to the last five years?
```
Choices: Higher than average,Average,Below average
```

The harvest days are calculated and shown to the data collector to ensure the data is logical

This module is dependent on the “Land Unit and Ownership” modules. It borrows values from surveyed plot size, local land unit, from the Land Unit and ownership module. And it also borrows the crop name (crop_name) variable from the “Respondent” module. Make sure to include the three dependent variables. This module also requires “site_characterstic_crop_establishment” module.