CAJ | 학술논문

采用随机区组小区试验研究了不同基追肥比例及施氮量对赣南紫色土旱地烤烟产质量的影响.结果表明,在施氮量为135 kg/hm2、基追肥比例为40%:60%(处理 N135-4-6)和50%:50%(处理 N135-5-5)条件下,烟株株高、茎围、有效叶、单叶重等农艺性状及烟叶产质量均优于基追肥比例为60%:40%(处理 N135-6-4).在施氮量为120 kg/hm2、基追肥比例为40%:60%(处理 N120-4-6)下,烟株生长状况及烟叶产质量均较处理 N135-4-6有所下降,但与处理 N135-6-4并无显著差异.表明在赣南紫色土旱地烟区,适当提高氮肥的追施比例,有利于烟叶产量及质量的提高,但氮肥施用量不能低于135 kg/hm2.
채용수궤구조소구시험연구료불동기추비비례급시담량대공남자색토한지고연산질량적영향.결과표명,재시담량위135 kg/hm2、기추비비례위40%:60%(처리 N135-4-6)화50%:50%(처리 N135-5-5)조건하,연주주고、경위、유효협、단협중등농예성상급연협산질량균우우기추비비례위60%:40%(처리 N135-6-4).재시담량위120 kg/hm2、기추비비례위40%:60%(처리 N120-4-6)하,연주생장상황급연협산질량균교처리 N135-4-6유소하강,단여처리 N135-6-4병무현저차이.표명재공남자색토한지연구,괄당제고담비적추시비례,유리우연협산량급질량적제고,단담비시용량불능저우135 kg/hm2.
Effects of different ratio between base and topdressing and N application rates on yield and quality of tobacco leaf were investigated by randomized block experiment in dry-land purple soil. Results showed that significant differences existed in plant height, stem diameter, effective leaf number, single leaf weight and yield and quality of tobacco leaf under N135-4-6 and N135-5-5 treatments compared with N135-6-4 treatment. Tobacco grew worse and yield and quality were lower in N120-4-6 treatment than in N135-4-6 treatment. There was no significant difference compared to N135-6-4 treatment. These results suggested that on hilly land of purple soil in southern Jiangxi Province, the appropriate rates of raising N topdressing can improve yield and quality of tobacco leaf, while the total amount of applied nitrogen should be kept under 135 kg/hm2.