CAJ | 학술논문

本文针对南方双季稻区的常规稻种植是否应该减小机插行距的问题，采用随机区组试验设计，在30 cm和25cm行距下，设计了不同行距同株距和不同行距同穴数两组对比试验。试验结果显示，当株距在13cm 时，25cm行距的产量要明显高于30cm；株距在18cm 时，30cm行距的产量要高于25cm。当穴数在1．4万穴/667m2和1．6万穴/667m2时，30cm行距的产量均高于25cm。从产量、经济性、标准化等多方面综合考虑，虽然肯定局部地区尝试缩小行距的做法，但30 cm行距插秧机依然是今后的主流机型，不宜大范围进行改变。
본문침대남방쌍계도구적상규도충식시부응해감소궤삽행거적문제，채용수궤구조시험설계，재30 cm화25cm행거하，설계료불동행거동주거화불동행거동혈수량조대비시험。시험결과현시，당주거재13cm 시，25cm행거적산량요명현고우30cm；주거재18cm 시，30cm행거적산량요고우25cm。당혈수재1．4만혈/667m2화1．6만혈/667m2시，30cm행거적산량균고우25cm。종산량、경제성、표준화등다방면종합고필，수연긍정국부지구상시축소행거적주법，단30 cm행거삽앙궤의연시금후적주류궤형，불의대범위진행개변。
With the problem of whether it should reduce the row spacing of mechanized transplanting in southern China , especially for conventional rice in double cropping areas , by using the randomized block experiment design , two field tri-als of different row spacing with the same plant spacing and different row spacing with the same number of plants were conducted .The results showed that the yield of 25 cm row spacing was higher than that of 30 cm with 25 cm plant spacing , while the yield of 30cm row spacing was higher than that of 25cm with 18cm plant spacing .The yield of 30cm row spac-ing was higher no matter the plant number was 14000/667 m2 or 16000/667 m2 .Taking into account of different aspects of yield , economy , standardization etc ., transplanter with 25 cm row spacing can be used in specific regions , but transplan-ter with 30 cm row spacing is still the mainstream models .A wide range of changing the row spacing is not recommended .