猪粪尿全量还田对水稻种植化肥减量增效的影响

通过大田试验,研究猪粪尿全量还田对水稻产量、品质及土壤养分的影响,以期为农业废弃物资源化利用及化肥减量增效提供依据。结果表明:与常规施肥对照相比,猪粪尿还田处理水稻产量显著增加;各处理米质差异不大;土壤有机质指标与产量成正相关。因此,猪粪尿全量还田是水稻种植化肥减量增效的有效措施和途径,可推广应用。

Effect of Pen manure and urine returning to the field on Fertilizer Reduction and Efficiency improvement in Rice planting

After harmless treatment, pen manure and urine can be returned to the field in full quantity, which can not only effectively recycle agricultural waste, but also reduce the use of fertilizer, both of which can reduce the impact on the environment risk. Through field experiments, the fertilizer consumption of 333.3 kg/hm2 returned to the field and 666.67kg/hm2 returned to the field was reduced by 53.5%, and the source of nitrogen fertilizer was guaranteed by organic instead of inorganic means. From the analysis of rice yield, SL10> SL5> SLCK, and the yield of pig manure and urine was significantly increased compared with that of the untreated. The yield component analysis showed that the effective spike was returned to the field 666.67kg/hm2, which was significantly higher than other treatments. However, there was no effect on the rice quality, only the chalkiness was different, and the chalkiness of 333.3 kg/hm2 returned to the field was the lowest. At the same time, the soil was tested, among which the available potassium was SL5 >SL10 > SLCK, and the organic matter index was SL10 > SL5 > SLCK. The change of organic matter index was positively correlated with the yield, and the increase was 18.63% compared with the control treatment. Therefore, it is an effective measure and way to reduce the amount of fertilizer and increase the efficiency of rice planting by returning the total amount of manure and urine to the field.