Study on the potential of silica-available based on types of soil on the productivity of paddy field in West Java Province, Indonesia

Abstract

The Si-available (Siap) content in the soil of paddy fields is decreasing, so it will affect decreasing the productivity of paddy fields. Soil type maps can be used to estimate the potential Siap content in paddy fields. The purpose of this study was to assess the productivity of the paddy field in West Java Province based on the Siap potential in each region using maps of soil types and paddy productivity data. This research was conducted in West Java Province. The research was carried out from February 2021 to March 2021. The research method used was the descriptive research method. This research is secondary data analysis so that no field test is carried out. The validation of the data from the analysis was based on the literature from the previous researchers. The parameters measured in this study were: the distribution of paddy fields, the percentage of soil types in each paddy field, the average productivity of paddy field on each type of soil, the distribution of paddy productivity levels, the potential for Siap to paddy productivity and map of the potential distribution of Siap in West Java Province. Secondary data obtained were then analyzed using spatial analysis and descriptive analysis. The results of the spatial analysis show that 77% of paddy fields in West Java have medium Siap potential, 17% low and 7% high. The results of the correlation analysis show that the productivity of paddy plants has a strong correlation (r = 0.99) to the Siap of paddy soil. The soil maps can be used to estimate the potential of Siap and the productivity of paddy plants. The Si application was recommended in paddy fields in the southern region of West Java Province.

Keywords

• Land planning
• paddy soil
• productivity map
• Si available

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