Effects of extraction period on yield of rice straw compost humic acids
P. Palanivell1, K. Susilawati1, O. H. Ahmed1* and A. M. Nik Muhamad2
1Department of Crop Science, Faculty of Agriculture and Food Science, University Putra Malaysia, Bintulu Sarawak Campus, 97008 Bintulu, Sarawak, Malaysia.
2Department of Forest Management, Faculty of Forestry, University Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
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