Penelitian ini bertujuan untuk mengetahui pengaruh biochar + pupuk kandang ayam terhadap pelindian hara meracun di tanah sulfat masam. penelitian ini dilaksanakan di rumah kaca dengan menggunakan rancangan acak kelompok (rak) faktor tunggal dan masing-masing perlakuan diulang 4 kali. perlakuan terdiri dari kontrol, kontrol + inpara, kontrol + sikin, biochar + pupuk kandang ayam, biochar + pupuk kandang ayam + inpara, biochar + pupuk kandang ayam + sikin. parameter yang diamati yaitu konsentrasi fe2+ dan na+ yang di dapatkan dari hasil pelindian. hasil pelindian menunjukkan bahwa pengaruh aplikasi biochar + pupuk kandang ayam mampu mengurangi nilai fe2+ yang terlindi, tetapi tidak berpengaruh terhadap nilai pelindian na+. namun dengan demikian pemberian biochar + pupuk kandang ayam belum mampu meningkatkan pertumbuhan tanaman padi dikarenakan masih rendahnya ph tanah yang menghambat pertumbuhan tanaman padi. kata kunci: biochar, tanaman padi, hara meracun

This research aimed to know the impact of biochar + chicken manure towards the leaching of poisoning nutrient in the sour sulphate land. this research was done in greenhouse by using randomized block design (rak) single factor and each treatment were done 4 times. the treatments consisted of control, control + inpara, control + sikin, biochar + chicken manure, biochar + chicken manure + inpara, biochar + chicken manure + sikin. parameter observed was concentration of fe2+ and na+ gotten from the result of the leaching.the result of leaching shows that the impact of biochar application + chicken manure is able to decrease the value of fe2+ leached, but it never affects on the leaching value of na+. however, the provision of biochar + chicken manure has not been able to increase the growth of paddy because of the low of the land ph pursuing the growth of paddy. keywords: biochar, paddy, poisoning nutrient