Agricultural planning based on local agro-climatology assessment in Bongkot, Purwodadi, Purworejo

Abstract

Bongkot, located in Purwodadi, Purworejo is a village dominated by wetland ricefield reaching 68% total area, with the majority of its population work as farmers. Climate parameters, especially rain intensity affect crop patterns. Farmers strongly depend on rain intensity to support productivity thus they need climate-based crop patterns. This study aims to plan agricultural calendar and crop patterns based on rainfall and dry patterns analysis. Rainfall data is derived from multi-temporal CHIRPS data. A monthly time series with thirty consecutive years (1990-2019) was used to identify local agro-climatology types. Climate of Bongkot generally has 5-6 consecutive wet months and 5-6 dry months. According to Oldeman criteria, this type belongs to C3, which is adequate to plant crops three times a year, with a couple of period for palawija crops on first and second planting, and one time paddy on November or December. The Oldeman classification can be applied as a climate-based crop adaptation.