CAJ | 학술논문

2011和2012年，采用再裂区设计，以超高产晚稻淦鑫688和五丰优T025为材料，在31.20万丛/hm2密度下，研究了行/株距比对不同品种产量和上部三叶形态特征的影响及两者的关系。结果表明，淦鑫688不施氮时， RS/IS（行株距比值）为2.0和2.8的处理产量显著高于比值为5.0和1.3的处理；在施氮时，RS/IS为5.0和2.0的处理产量显著高于2.8和1.3的处理。五丰优T025不施氮时的产量表现为RS/IS为1.3的处理显著高于5.0和2.8的处理；而在施氮时表现为RS/IS为5.0的处理显著高于2.0和1.3的处理。施氮时，RS/IS为2.0的处理提高了氮素积累总量和氮肥表观利用率，而RS/IS为5.0的处理降低了籽粒需氮量；不论施氮与否，两个品种在RS/IS为2.0时，倒1至倒3叶的基角、开张角和叶长较小。
2011화2012년，채용재렬구설계，이초고산만도감흠688화오봉우T025위재료，재31.20만총/hm2밀도하，연구료행/주거비대불동품충산량화상부삼협형태특정적영향급량자적관계。결과표명，감흠688불시담시， RS/IS（행주거비치）위2.0화2.8적처리산량현저고우비치위5.0화1.3적처리；재시담시，RS/IS위5.0화2.0적처리산량현저고우2.8화1.3적처리。오봉우T025불시담시적산량표현위RS/IS위1.3적처리현저고우5.0화2.8적처리；이재시담시표현위RS/IS위5.0적처리현저고우2.0화1.3적처리。시담시，RS/IS위2.0적처리제고료담소적루총량화담비표관이용솔，이RS/IS위5.0적처리강저료자립수담량；불론시담여부，량개품충재RS/IS위2.0시，도1지도3협적기각、개장각화협장교소。
In 2011 and 2012, a split-plot design experiment was carried on the effects of row spacing ratio (RS/IS) on yield and top three leaves of super high-yielding late rice Wufengyou T025 and Ganxin 688 in the same planting density of 31.20 ×104 hille/hm2. The results indicated that the yield of RS/IS 2.0 and RS/IS 2.8 of Ganxin 688 were significant higher than that of RS/IS 5.0 and RS/IS 1.3 in no nitrogen condition, while the yield of RS/IS 5.0 and RS/IS 2.0 were significant higher than that of RS/IS 2.8 and RS/IS 1.3 in nitrogen condition. The yield of RS/IS 1.3 of Wufengyou T025 were significant higher than that of RS/IS 5.0 and RS/IS 2.8 in no nitrogen condition, while the yield of RS/IS 5.0 were significant higher than that of RS/IS 2.0 and RS/IS 1.3 in nitrogen condition. In nitrogen condition, RS/IS 5.0 and RS/IS 2.0 improved total amount of nitrogen accumulation and apparent nitrogen utilization, and RS/IS 5.0 decreased nitrogen demand of grain. Whether nitrogen application or not, the basic angle, stretch angle and leaf length of top three leaves of two rice cultivar in RS/IS 2.0 were small.