早晚稻连作地区低产田培肥地力途径研究

Study of Low Yield Field Soil Fertility in the Region of Early-Late Continues Cropping

通过连续2年小区田间试验,研究不同培肥措施对早晚稻连作地区低产田土壤理化性状、产量的影响。结果表明,与单施化肥相比,添加秸杆、绿肥、畜禽类配施化肥后,土壤有机质、全氮、碱解氮、有效磷、速效钾含量分别增加了3.6%、25.0%、10.4%、210.0%和26.7 mg/kg。各培肥处理产量与单施化肥处理产量增产1.6%-14.7%。

The effects of different tillage and fertility systems on soil physical and chemical properties,crop yield were studied by two years field experiments. The results showed that,compared with chemical fertilizer application,addition of straw,manure,livestock and poultry manure with chemical fertilizers could significantly enhance soil fertility,the increasing extent of soil organic matter,total N,AP,AK were 3. 6%,25. 0%,10. 4%,210. 0% and 26. 7 mg/kg,respectively. Compared with chemical fertilizer application,crop yield under different fertilizer treatments increased range was 1. 6%-14. 7%.