Two experiments were conducted. One experiment (Experiment
1) was to investigate the effects of dung patch on soil nutrition
(N, P, K, and OM) without intervention by plant roots. In this
experiment, fresh dung was collected and mixed and twenty dung
patches were created by filling the mixed dung into a 15 cm diameter,
10 cm deep porcelain pot, and then pouring the dung in the
pot on bare ground (new zokor-mound) to ensure there was no
plant root in the dung patch area on April 22, 2008.