以优质食味粳稻南粳9108和南粳5718为材料,以常规施肥为对照（CK,施氮量300 kg/hm²、基蘖氮肥与穗氮肥比7∶3）,分别设计6个侧深施肥处理[基蘖氮肥为常规施肥处理的100%（T1）、90%（T2）、85%（T3）、80%（T4）、75%（T5）及70%（T6）,穗氮肥量同CK],探讨侧深施肥对里下河地区单季粳稻产量和品质的影响。结果表明,与CK相比,T1处理显著提高水稻产量,2个品种产量分别提高了9.49%和8.23%,经济效益显著增加,同时改善了稻米的加工品质和营养品质,但未改善稻米的食味品质;T3处理2个品种产量与CK相比无显著差异,但提高了稻米的加工品质、外观品质和食味品质,是一种优质稳产的施肥方式。

The effects of deep side fertilization on the yield and quality of single-season japonica rice in Lixiahe area were studied, with high-quality japonica rice Nangeng 9108 and Nangeng 5718 as materials, and conventional fertilization （the nitrogen application rate is 300 kg/hm², and the ratio of basal nitrogen fertilizer and panicle nitrogen fertilizer is 7∶3） as control, 6 deep side fertilization treatments were: the basal nitrogen fertilizer was 100%（T1）、90%（T2）、85%（T3）、80%（T4）、75%（T5） and 70%（T6） of the conventional treatment, respectively,and the amount of panicle nitrogen fertilizer is the same as the conventional fertilization treatment. The results showed that the T1 treatment significantly improved the rice yield, the yield of the two varieties increased by 9.49% and 8.23% respectively compared with CK, and the economic benefit increased significantly. At the same time, the processing quality and nutritional quality of the rice were improved, but the eating quality of the rice was not improved. Compared with CK, there was no significant difference in the yield of the two varieties treated with T3, but the processing quality, appearance quality and eating quality of rice were improved. T3 treatment is a high-quality and stable-yielding fertilization method.