In order to improve the high-yield cultivation technology system of mechanical dry direct seeding rice in coastal rice areas,ensure the yield and quality of rice,minimize agricultural costs,reduce labor intensity,improve agricultural roduction efficiency and ecological benefits,and provide theoretical basis for the future development of direct seeding rice in coastal rice areas.The effects of different sowing rates on yield,quality and economic benefits of mechanical dry direct seeding in coastal rice area were studied by field comparative experiment,and the best sowing rate of mechanical dry direct seeding in coastal rice area was explored.The results showed that 97.5 kg/hm2 sowing rate had the highest yield and better processing quality,but the nutritional quality and taste value of rice were slightly lower than 120 kg/hm2 sowing rate;Compared with mechanical transplanting,the yield of mechanical direct seeding was 2.13 t/hm2,1.76 t/hm2 and 2.05 t/hm2 respectively,but the benefit increased by 1 440 yuan/hm2,2 180 yuan/hm2 and 1 180 yuan/hm2 respectively,and the treatment 2 increased by 740 yuan/hm2 and 1 000 yuan/hm2 respectively compared with the treatment 1 and 3.
关键词
播种量/滨海稻区/水稻机械旱直播/产量/米质/经济效益/影响
Key words
Sowing amount/Coastal rice area/Mechanical dry direct seeding of rice/Yield/Rice quality/Economic benefits/Influence
维普
万方数据