控缓释基肥与播种量配置对水稻机械旱直播产量的影响

Effect of Controlled/Slow-release Base Fertilizer and Sowing Amount on Mechanical Dry Seeding Yield of Rice

为了探索滨海稻区水稻机械旱直播控缓释基肥与播种量最佳配置方案,并且保证产量同时尽量降低农业成本、降低劳动强度、提高农业生产效率、生态效益,为直播稻未来在滨海稻区发展提供理论依据。采用田间对比试验方法,研究了控缓释基肥与播种量配置对滨海稻区水稻旱直播产量的影响。结果表明,实际产量最高的是675 kg/hm^(2)控缓释基肥与150 kg/hm^(2)播种量配置的处理5,其次是540 kg/hm^(2)控缓释基肥与195 kg/hm^(2)播种量为配置的处理3,处理5比处理3增产4.41%。综上,合理的控缓释基肥与播种量配置能够满足水稻各时期生长发育对肥的需要,同时有效调节群体数量,大大提高了水稻机械旱直播产量。

The aim of this study was to explore the optimal allocation scheme of rice mechanical dry direct seeding control/slow release base fertilizer and sowing amount in coastal rice area,and ensure the yield while minimizing agricultural cost,reducing labor intensity,improving agricultural production efficiency and ecological benefits,so as to provide theoretical basis for the future development of direct seeding rice in coastal rice area.The effects of controlled release base fertilizer and sowing amount on rice yield in coastal rice area were studied by field comparison experiment.The results showed that the actual yield was the highest in the treatment of 675 kg/hm^(2) controlled slow-release base fertilizer and 150 kg/hm^(2) seeding quantity,followed by the treatment of 540 kg/hm^(2) controlled slow-release base fertilizer and 195 kg/hm^(2) seeding quantity,and the yield of treatment 5 was 4.41%higher than that of treatment 3.In conclusion,reasonable control and slow release base fertilizer and sowing amount allocation can meet the needs of rice growth and development at various stages,and effectively regulate the population number,which greatly improves the yield of rice mechanical dry direct seeding.