CAJ | 학술논문

以杂交粳稻常优3号和常优5号为材料,设置未施氮处理(0N)、当地高产栽培(对照)、高产高效栽培、超高产栽培、超高产高效栽培和氮肥高效利用栽培6种栽培模式,并观察其对水稻产量和群体质量的影响.结果表明,两品种超高产栽培和超高产高效栽培的产量平均分别达12.0 t hm–2和10.9 t hm–2,较当地常规高产栽培分别高出41.6%和29.1%.与当地常规高产栽培相比,超高产栽培和超高产高效栽培等处理的茎蘖成穗率明显提高,抽穗至成熟期的干物质积累增加,有效叶面积和高效叶面积比率增加.上述两处理还提高了水稻粒叶比,改善了源库关系,并提高了剑叶的光合速率和叶绿素含量以及抽穗后的根冠比和根系伤流量.这些结果表明,通过栽培技术的集成与优化,可以改善水稻群体质量,获得更高产量.
이잡교갱도상우3호화상우5호위재료,설치미시담처리(0N)、당지고산재배(대조)、고산고효재배、초고산재배、초고산고효재배화담비고효이용재배6충재배모식,병관찰기대수도산량화군체질량적영향.결과표명,량품충초고산재배화초고산고효재배적산량평균분별체12.0 t hm–2화10.9 t hm–2,교당지상규고산재배분별고출41.6%화29.1%.여당지상규고산재배상비,초고산재배화초고산고효재배등처리적경얼성수솔명현제고,추수지성숙기적간물질적루증가,유효협면적화고효협면적비솔증가.상술량처리환제고료수도립협비,개선료원고관계,병제고료검협적광합속솔화협록소함량이급추수후적근관비화근계상류량.저사결과표명,통과재배기술적집성여우화,가이개선수도군체질량,획득경고산량.
A high quality of population is necessary to achieve high grain yield in rice, but little information is available on under-standing how cultivation patterns affect population quality. In this study, two japonica hybrid rice cultivars Changyou 3 and Changyou 5 were grown in the field, with six cultivation patterns including no nitrogen application (0N), local high yielding cul-tivation (control), cultivation for high yielding and high efficiency (CHYHE), super high yielding cultivation (SHY), cultivation for super high yielding and high efficiency (SHYHE) and cultivation for high use efficiency of N (HUEN). The results showed that, the average yields of two cultivars under SHY and SHYHE were 12.0 t ha–1 and 10.9 t ha–1, respectively, and 41.6%and 29.1%higher than these of control. Compared with the control, the SHY and SHYHE also significantly increased percentage of productive tillers, biomass from heading to mature, efficient and high efficient leaf area, grain-leaf ratio, leaf photosynthetic rate and SPAD values after anthesis , root-shoot ratio, and root bleeding after heading. The results indicated that the population quality of rice could be improved and higher yield could be achieved through integrating and optimizing cultivation techniques in rice production.