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Kanto, U.; Jutamanee, K.; Osotsapar, Y.; Jattupornpong, S.; Kaewprasit, C. Effects of Swine Manure Extract by Foliar Application and Soil Drenching on Soil Chemical Properties and Variable Soil Strength of Cassava Planted Soils. Agr. Nat. Resour. 2012, 46, 24-32.