Studies on the Utilization of Human Urine as Fertilizer in Peiping 1. Effect of Direct Application of Urine on Crop Yield and on Salt Content of the Soil
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Abstract:
Field ekperimenls of corn, millet, spinach, and fennel were made to test the fertilizing value of urine in. Peiping soil. On equal nitrogen content basis, urine has nearly the same fertilizing value as ammonium sulfate and they are much superior than feces calves, The amount bf salt in urine applied to the soil was very small. photographs: 1,No munura 2,Feces cakes 3,Hmam urine 4,Amnonium sulfate.
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Shang-Chin Chen. Studies on the Utilization of Human Urine as Fertilizer in Peiping 1. Effect of Direct Application of Urine on Crop Yield and on Salt Content of the Soil[J]. Acta Pedologica Sinica,1948,0(1):33-38.