Effect of Sowing Rate on Yield,Quality and Economic Benefit of Mechanical Dry Direct Seeding of Rice in Coastal Rice Area
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.
Sowing amountCoastal rice areaMechanical dry direct seeding of riceYieldRice qualityEconomic benefitsInfluence
万方数据
维普
