甬优538精确定量栽培的设计与实现

[目的]精确定量栽培技术是水稻栽培技术的又一次突破,探索甬优538精确定量栽培技术。[方法]选择3户农户以12 750kg/hm2进行攻关,根据叶龄进程,对产量及群体结构、播种期与移栽期进行设计,对氮肥用量、灌溉等关键技术进行精确定量化设计,并严格实施。[结果]甬优538是宁波市农业科学院作物研究所和宁波市种子有限公司育成的矮秆大穗型籼粳交晚稻新品系,具有超高产的潜力。3块单季稻超高产攻关获得成功,实际产量分别为14 806.80、12 772.95、13 135.35 kg/hm2。[结论]该研究可为甬优538精确定量栽培提供科学依据。

Design and Realization of Accurate Quantitative Cultivation of Yongyou 538

[Objective] Accurate quantitative cultivation technology is a another great breakthrough of rice cultivation technology,the aim was to explore the accurate quantitative cultivation technology of Yongyou 538.[Method] Taking the yield of 12 750 kg/hm2 as target and according to the leaf age process,3 farmers were chose,and the yield and group structure,sowing date and transplanting period were designed,and the key technologies such as nitrogen fertilizer use amount and irrigation were also designed accurately and quantitatively,then stricdy enforced.[Result] Yongyou 538 was a new late rice line with dwar and big spike-type and crossed by indica rice and japonica rice,which was bred by Institute of Crops,Ningbo Academy of Agricultural Sciences and Ningbo City Seeds Co.,Ltd,and had potential of super-high yield.The super-high yield target of 3 pieces of single cropping rice realized and their yield were 14806.80,12 772.95,13 135.35 kg/hm2,resp..[Conclusion] The study provides a scientific basis for the accurate and quantitative cultivation of Yongyou 538.