CAJ | 학술논문

为探讨马铃薯微型薯合理的氮肥施肥方式,以‘早大白’马铃薯脱毒试管苗为材料,在温室内进行了氮肥不同基施和追施比例对马铃薯微型薯生产影响的试验.结果表明:在施氮肥量为纯氮105 kg/hm2条件下,单株结薯方面,基追比为5:2时,单株结薯最多,全部做基肥的处理,单株结薯最低;单粒重方面,基追比为2:1时,单粒重最大,全部追肥的处理最低.可见氮肥基施和追施配合有利于提高单株结薯率及平均单粒重.因此,微型薯生产重视氮肥基施同时配合追施比较符合移栽的试管苗对氮肥的吸收规律.
위탐토마령서미형서합리적담비시비방식,이‘조대백’마령서탈독시관묘위재료,재온실내진행료담비불동기시화추시비례대마령서미형서생산영향적시험.결과표명:재시담비량위순담105 kg/hm2조건하,단주결서방면,기추비위5:2시,단주결서최다,전부주기비적처리,단주결서최저;단립중방면,기추비위2:1시,단립중최대,전부추비적처리최저.가견담비기시화추시배합유리우제고단주결서솔급평균단립중.인차,미형서생산중시담비기시동시배합추시비교부합이재적시관묘대담비적흡수규률.
To investigate the effects of basal and addition nitrogen (N) fertilizer application on the yield of potato minituber, the experiment was carried out in a greenhouse, using in vitro plantlets of 'Zaodabai' as the test material. With a rate of 105 kg N/ha application, the tuber set per plant was the highest in the treatment of ratio of basal and additional fertilizer being 5:2, while the tuber set per plant was the lowest in the treatment using al of N fertilizer as basal fertilizer. The treatment of basal and additional N fertilizer in 2:1gave the highest tuber weight, while N feritilizer when used al as additional fertilizer produced smal est tubers. These results suggested that combination of basal and additional N fertilizer application could improve the plant tuber set and the tuber weight per plant. Therefore, basal N fertilizer combined with additional N fertilizer could meet N absorption pattern of plantlets transplanted and should be a reasonable N fertilizer application strategy for the production of minituber.