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目前,汕优6号是本省晚稻的当家品种,我市平均亩产已达800多斤,个别田块则亩产高达1200斤以上,这说明杂交水稻的增产潜力还很大。据有关材料认为,影响杂交稻生产潜力进一步发挥的主要因素是稻苗迟发和后期早衰,而迟发和早衰则与施肥方法、肥料配比等密切相关。为此,我们在1983年试验基础上,1984年继续进行施肥方法、肥料配比试验,以进一步探讨连作杂交晚稻合理施肥技术。
At present, Shanyou 6 is the most famous variety of late rice in this province. The average mu yield of our city has reached over 800 kilos and that of individual paddy fields has reached over 1200 kilos per mu. This shows that the potential for yield increase of hybrid rice is still high. According to the relevant materials, the main factor that further affects the potential of hybrid rice production is the late and late rice failure, while the late and premature aging are closely related to fertilization methods and fertilizer ratios. Therefore, on the basis of the experiment in 1983, we continued the fertilization method and fertilizer ratio test in 1984 to further explore the rational fertilization technology of continuous cropping hybrid late rice.