CAJ | 학술논문

为了探讨内蒙古阴山以北地区马铃薯生产中氮肥适宜施用量，以‘克新1号’品种为材料，采用田间小区试验的方法，研究了氮素水平对马铃薯干物质积累及库活性的影响。结果表明：在当地土壤肥力条件下，马铃薯干物质积累量与库活性均表现出随施氮量的增加呈先增加后降低的趋势。在360 kg/hm2施氮量下，马铃薯公顷干物质积累量、单株叶片干物质积累量、单株块茎干物质积累量和库活性均最大，分别为5989.81 kg/hm2、20.03 g/株、84.32 g/株、0.072 g/g·d。因此，360 kg/hm2的施氮量，可以作为当地马铃薯生产中的最佳氮肥施用量。
위료탐토내몽고음산이북지구마령서생산중담비괄의시용량，이‘극신1호’품충위재료，채용전간소구시험적방법，연구료담소수평대마령서간물질적루급고활성적영향。결과표명：재당지토양비력조건하，마령서간물질적루량여고활성균표현출수시담량적증가정선증가후강저적추세。재360 kg/hm2시담량하，마령서공경간물질적루량、단주협편간물질적루량、단주괴경간물질적루량화고활성균최대，분별위5989.81 kg/hm2、20.03 g/주、84.32 g/주、0.072 g/g·d。인차，360 kg/hm2적시담량，가이작위당지마령서생산중적최가담비시용량。
Field plot experiments were conducted to study the effects of nitrogen rate on dry matter accumulation and sink activity of potatoes using 'Kexin 1' as the material, aiming at finding the optimal nitrogen application rate in the potato production region north of the Yinshan Mountain. Under local soil fertility conditions, the dry matter accumulation and sink activity of potato al increased firstly, and then decreased with the increase of nitrogen application rate. The dry matter accumulation, leaf dry matter accumulation, tuber dry matter accumulation and sink activity of potatoes were maximal when nitrogen was applied at the rate of 360 kg/ha, being 5 989.81 kg/ha, 20.03 g/plant, 84.32 g/plant, and 0.072 g/g?d, respectively. Therefore, nitrogen 360 kg/ha would be regarded as the optimal nitrogen application rate for local potato production.