关键词: 机插, 水稻, 高效, 肥料运筹

Abstract:

 According to the characteristics of machine transplanting rice, the authors discussed the high yield and high efficient fertilizer management on machine transplanting single cropping rice along the Yangtze River in Anhui Province. The results showed that the control of nitrogen and phosphorus add potassium fertilizer management is suitable for machine transplanting rice. High yield and high efficient fertilizer management include: base nitrogen fertilizer amount should be controlled within 108 kg/hm2, basal nitrogen fertilizer, tillering nitrogen fertilizer and panicle nitrogen fertilizer proportion is 4∶4∶2. The base phosphate fertilizer and panicle phosphate fertilizer ratio is 8.5∶1.5. The base potassium fertilizer and panicle potassium fertilizer ratio is 7∶3 or 4.6∶5.4. When the target output of 9 000~9 750 kg/hm2, the recommended amount of fertilizer are: N 195~210 kg/hm2, P2O5 72 kg/hm2 and K2O 120 kg/hm2. When N, P and K in panicle fertilizer accounted for 20%, 15%, 54% of the total, the population and yield components of rice are more reasonable, which is favorable for high yield and high efficient production. The machine transplanting rice has more growing amount, longer growing period and larger potassium consumption, so the application of panicle potassium fertilizer is an effective measure to increase the yield.

Key words: machine planting, rice, high efficient, fertilizer management