نبذة مختصرة : Soil is a part of the Earth's crust where living organisms thrive, composed of minerals and organic materials originating from weathering and sedimentation. The soil in Naiola Village is classified as entisol with a very thin soil solum (lithic), characterized by low organic content and a very low cation exchange capacity. Previous research, liquid organic fertilizer (POC) derived from tofu waste was applied to investigate the effects of concentration and application time on the growth and yield of mung beans. The main objective of this research is to determine several soil chemical properties of entisols after applying POC to mung bean plants in Niola Village, Bikomi Selatan Subdistrict, Timor Tengah Utara Regency. The research was conducted using a descriptive method with observational techniques. Soil samples were collected from two plots, namely the control plot (P0) and highest yield plot (P1), at the mung bean plantation and subsequently analyzed in the laboratory to obtain quantitative data. The analyzed parameters are; water content and soil pH. The highest water content was 0.23% and the highest pH was 7.70. ; Tanah adalah bagian kulit bumi tempat makhluk hidup berkembang biak yang tersusun dari mineral dan bahan organik yang berasal dari hasil pelapukan dan pengendapan. Tanah di Desa Naiola diklasifikasikan sebagai tanah entisol dengan solum tanahnya sangat tipis (lithic), kandungan bahan organik sangat rendah dan kapasitas tukar kation sangat rendah. Penelitian sebelumnya, mengaplikasikan pupuk organik cair (POC) limbah tahu cair untuk mengetahui pengaruh konsentrasi dan waktu aplikasi terhadap pertumbuhan dan hasil tanaman kacang hijau. Penelitian ini bertujuan untuk mengetahui beberapa sifat kimia tanah tanah entisol yang telah diaplikasikan POC pada tanaman kacang hijau di Desa Niola Kecamatan Bikomi Selatan Kabupaten Timor Tengah Utara. Penelitian ini merupakan penelitian deskriptif dengan metode observasi, yaitu pengambilan sampel di lapangan dilakukan di lahan perkebunan kacang hijau dengan ...
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