Chinese Journal of Agrometeorology ›› 2018, Vol. 39 ›› Issue (09): 585-593.doi: 10.3969/j.issn.1000-6362.2018.09.004

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Effects of Resource Products from Pig Manure on Phosphorus Leaching Ability

MA Jin-feng, ZHU Chang-xiong, LI Hong-na, GENG Bing, ZHANG Li, LI Bin-xu, LI Yan-ling   

  1. 1.Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China; 2. Hebei University of Economics and Business, Shijiazhuang 050061
  • Online:2018-09-20 Published:2018-09-13

Abstract: Simulate and outdoor leaching experiments were conducted with fluvo-aquic soil in order to clarify the differences on transformation of phosphorus and leaching progress with different resource products from pig manure. The amount of phosphorus leach-loss, Olsen-P content in soil and yields of Chinese cabbage were all determined in the experiments. The treatments included biological organic fertilizer (BOF), ordinary organic fertilizer (OF), biogas slurry (BS), waste-water from livestock farm (WLF), with chemical fertilizer (CF) and no P application (NOP) as control. The results showed that, (1) due to the reason that soil in lower layer can absorb P leached from soil in upper layer, TP leaching amount of simulate and outdoor leaching experiments showed different trends, and the maximum average amount was from treatment with CF and WLF, respectively. (2) There were significant differences on Olsen-P content in different soil depths with different treatments. Compared with NOP treatment, there was a significant increase of Olsen-P content in 0-20cm soil with CF treatment and in 0-60cm soil with BOF treatment. However, there was no significant difference between NOP and other treatments on Olsen-P content in all the four soil depths, respectively. (3) As for the outdoor leaching experiment, the yield of the Chinese cabbage with CF treatment was 17.8%-82.0% higher than the treatments with organic fertilizers, and 923.5% higher than NOP treatment. Moreover, the yields of the Chinese cabbage with organic treatments were 462.4%-768.7% higher than NOP treatment. There were significant differences on the P content in vegetable among different treatments. The content of P in vegetable of CF treatment was 22.0%-124.7% higher than treatments with organic fertilizers , and 1504.3% higher than NOP treatment, moreover, P in vegetable of treatments with organic fertilizers were 614.0%-1214.9% higher than NOP treatment. Above all, it was pointed out that, the most appropriate approach to deal with pig manure were BOF and OF, according to the comprehensive analysis of phosphorus-leaching control, vegetable growth acceleration and phosphorus up-taking ability.

Key words: Pig manure, Recycling, Leaching, Olsen-P, Biological organic fertilizer