CAJ | 학술논문

[目的] 为玉米品种先育335的推广种植提供技术支持.[方法] 通过田间施肥试验研究了不同施氮量和不同施肥方法对先育335生长和产量的影响.[结果] 各施肥处理的平均叶绿素含量均显著高于对照.对照的生物产量最低,为19 418.0 kg/hm~2;处理6的生物产量最高,为27 747.5 kg/hm~2.处理6中玉米吸收的N和K最多,低氮处理中玉米的吸磷量最高.施肥对先育335的穗行数影响最小,对行粒数和百粒重影响较大,处理6的行粒数最高,百粒重最重,分别为39.27个和43.67 g.施肥处理的玉米产量比对照高20%～42%.先育335的最佳施氮量为210 kg (纯N)/hm~2.中氮处理的玉米籽粒增产8.65 kg/kg (纯养分),低氮处理的玉米籽粒增产6.12 kg/kg (纯养分),高氮处理的玉米籽粒增产5.08 kg/kg (纯养分).[结论] 大量氮肥作底肥深施和后期追施少量氮肥的施肥方法简便易行.
[목적] 위옥미품충선육335적추엄충식제공기술지지.[방법] 통과전간시비시험연구료불동시담량화불동시비방법대선육335생장화산량적영향.[결과] 각시비처리적평균협록소함량균현저고우대조.대조적생물산량최저,위19 418.0 kg/hm~2;처리6적생물산량최고,위27 747.5 kg/hm~2.처리6중옥미흡수적N화K최다,저담처리중옥미적흡린량최고.시비대선육335적수행수영향최소,대행립수화백립중영향교대,처리6적행립수최고,백립중최중,분별위39.27개화43.67 g.시비처리적옥미산량비대조고20%～42%.선육335적최가시담량위210 kg (순N)/hm~2.중담처리적옥미자립증산8.65 kg/kg (순양분),저담처리적옥미자립증산6.12 kg/kg (순양분),고담처리적옥미자립증산5.08 kg/kg (순양분).[결론] 대량담비작저비심시화후기추시소량담비적시비방법간편역행.
[Objective] The study aimed to supply technical support for popularizing and planting the maize cultivar Xianyu335. [Method] The Effects of different nitrogen (N) application rates and fertilization methods on the growth and yield of Xianyu335 were studied through field fertilization experiment. [Result] The average chlorophyll contents in various fertilization treatments were significantly higher than that in CK. The biomass in CK was lowest, being 19 418.0 kg/hm~2 and that in Treatment 6 was highest, being 27 747.5 kg/hm~2. The uptake amounts of N and K in the maize plants in Treatment 6 were highest and that of P in the maize plants in low N treatments were highest. The effect of fertilization on the row number per ear of Xianyu335 was least and that on the grain number per row and 100-grain weight were greater. The grain number per row in Treatment 6 was highest, being 39.27; its 100-grain weight was heaviest, being 43.67 g. The maize yields in fertilization treatments were increased by 20%-42% in comparison with that in CK. The optimum N application rate of Xianyu335 was 210 kg (pure N)/hm~2. The yield of maize grains was increased for 8.65 kg/kg (pure nutrient) in moderate N treatments, that was increased for 6.12 kg/kg (pure nutrient) in low N treatments and that was increased for 5.08 kg/kg (pure nutrient) in high N treatments. [Conclusion] The fertilization method of deeply applying a large amount of N fertilizer as base fertilizer and dressing a little N fertilizer in later stage was simple.