CAJ | 학술논문

宁夏中南部地区是宁夏主要的马铃薯种植基地,近年来该区由于马铃薯产业的不断发展和环境气候的逐渐改变,马铃薯双垄全膜覆盖沟播栽培已开始较大面积推广.因此,针对宁夏中南部地区不同土壤肥力及气候条件,不同地区选用当地的主栽品种(南部山区为‘陇薯3号’,中部干旱带为‘虎头’),布置了马铃薯不同种植密度试验.结果表明,宁夏中南部地区马铃薯双垄全膜覆盖种植密度的高低与其生育期、商品薯率及产量间均存在较大的关系.从马铃薯生育期、商品薯率和产量综合因素来看,宁夏南部山区和中部干旱带马铃薯适宜栽培的密度分别为3500~4000株/667 m2和2000~2500株/667 m2,通过函数拟合发现,宁夏南部山区马铃薯种植高产的密度为3612株/667 m2,中部干旱带为2564株/667 m2.
저하중남부지구시저하주요적마령서충식기지,근년래해구유우마령서산업적불단발전화배경기후적축점개변,마령서쌍롱전막복개구파재배이개시교대면적추엄.인차,침대저하중남부지구불동토양비력급기후조건,불동지구선용당지적주재품충(남부산구위‘롱서3호’,중부간한대위‘호두’),포치료마령서불동충식밀도시험.결과표명,저하중남부지구마령서쌍롱전막복개충식밀도적고저여기생육기、상품서솔급산량간균존재교대적관계.종마령서생육기、상품서솔화산량종합인소래간,저하남부산구화중부간한대마령서괄의재배적밀도분별위3500~4000주/667 m2화2000~2500주/667 m2,통과함수의합발현,저하남부산구마령서충식고산적밀도위3612주/667 m2,중부간한대위2564주/667 m2.
South-central area of Ningxia province is the main planting base of potatoes. Due to the continuous development of potato industry and environmental and climatic changes, the potato planting technology of double ridges mulching was widely extended in this area. According to the differences of soil fertility, climatic conditions in south-central area, the experiment with different planting densities of potato was conducted in different testing sites, and local main cultivars were adopted ('Longshu 3' was used in southern mountainous area, and 'Hutou' in central arid area). The results indicated that, under the planting mode of double ridges mulching, the planting density of potato had close relationship with its growth period, commodity potato rate and yield. Comprehensively considered these indexes, the suitable planting density of potato was 3 500-4 000 hil/667 m2 and 2 000-2 500 hil/667 m2, respectively, in southern mountainous area and central arid area. By function fitting, the highest yield of potato was demonstrated for southern mountainous area and central arid area of Ningxia province, which was 3 612 hil/667 m2 and 2 564 hil/667 m2, respectively.