Study on the Difference of Rice Growth and Yield under Two New Mechanical Transplanting Methods with Different Fertilization Rates and Transplanting Densities
Received date: 2022-10-13
Online published: 2023-03-14
The effects of two mechanical transplanting methods （the mechanical transplanting technology for printing sowing and the orderly mechanically throwing seedling technology） and different fertilizer and density treatments on rice growth and yield were studied with Jingliangyouhuazhan as the test material. The results showed, the number of rice stems and tillers in the orderly mechanically throwing seedling technology was more than that in the mechanical transplanting technology for printing sowing at tillering stage, however, the reducing fertilizer application and increasing planting density treatment were lower than that of the conventional fertilizer application and conventional planting density treatment （the control） in both transplanting methods. Aboveground dry matter accumulation of the orderly mechanically throwing seedling technology were more than the mechanical transplanting technology for printing sowing, of the treatment of reducing fertilizer application and increasing planting density were 12.00%-14.00% higher than those in the conventional fertilizer application and conventional density treatment. When the transplanting density was 17 cm×25 cm and the fertilizer application was reduced by 24%, the yield of the two transplanting methods were 4.54%-6.23% higher than that of the control.
SHI Nan, CHEN Chongyi, WEN Shuangya, HU Haiyan, GAO Zhiqiang, SHU Chang, YAN Lingling, YAN Miaojun, WANG Xiaofeng . Study on the Difference of Rice Growth and Yield under Two New Mechanical Transplanting Methods with Different Fertilization Rates and Transplanting Densities[J]. China Rice, 2023 , 29(2) : 88 -92 . DOI: 10.3969/j.issn.1006-8082.2023.02.018
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