CAJ | 학술논문

为了确定陇中地区马铃薯生产中氯化钾的合理用量，于2010年在甘肃兰州和定西两地进行了不同氯化钾施用量试验，测定了马铃薯单株块茎数、块茎重、大中薯率、烂薯率和薯块产量，分析了不同用量下马铃薯品质。结果表明，在施N 120 kg/hm2和P2O560 kg/hm2的基础上，K2O用量在0~84 kg/hm2的范围内，随着钾肥施入量的增加，单株块茎数、块茎重、大中薯率和薯块产量以及马铃薯干物质、粗淀粉和还原糖含量不断提高，而烂薯率明显减小，维生素C含量不断下降；且在钾肥施入量为84 kg/hm2时，单株块茎数、块茎重、大中薯率和薯块产量以及马铃薯干物质、粗淀粉含量最高，而烂薯率最低。因此，甘肃马铃薯主产区马铃薯生产过程中，在施纯N 120 kg/hm2和P2O560 kg/hm2条件下，氯化钾适宜用量为K2O 36~84 kg/hm2。
위료학정롱중지구마령서생산중록화갑적합리용량，우2010년재감숙란주화정서량지진행료불동록화갑시용량시험，측정료마령서단주괴경수、괴경중、대중서솔、란서솔화서괴산량，분석료불동용량하마령서품질。결과표명，재시N 120 kg/hm2화P2O560 kg/hm2적기출상，K2O용량재0~84 kg/hm2적범위내，수착갑비시입량적증가，단주괴경수、괴경중、대중서솔화서괴산량이급마령서간물질、조정분화환원당함량불단제고，이란서솔명현감소，유생소C함량불단하강；차재갑비시입량위84 kg/hm2시，단주괴경수、괴경중、대중서솔화서괴산량이급마령서간물질、조정분함량최고，이란서솔최저。인차，감숙마령서주산구마령서생산과정중，재시순N 120 kg/hm2화P2O560 kg/hm2조건하，록화갑괄의용량위K2O 36~84 kg/hm2。
Field experiments of different application rates of KCl were conducted in 2010 at Lanzhou and Dingxi Cities to determine the reasonable application rate of KCl in the main area of potato cultivation in Gansu Province. Tuber number per plant, tuber yield per plant, marketable tuber percentage, rotted tuber percentage, tuber yield and quality were determined under different application rates. The results indicated that increasing potassium application rate improved tuber number per plant, tuber yield per plant, marketable tuber percentage, tuber yield, dry matter content, crude starch content and reducing sugar content based on N 120 kg/ha, P2O5 60 kg/ha and K2O 0-84 kg/ha, but rotted tuber percentage and vitamin C content decreased. The tuber number per plant, tuber yield per plant, marketable tuber percentage, tuber yield, dry matter content and crude starch content were the highest, and rotted tuber percentage was the lowest with the application of K2O 84 kg/ha. So it was proved that reasonable application of KCl could be 36-84 kg/ha based on N 120 kg/ha and P2O5 60 kg/ha in the main areas of potato cultivation in Gansu Province.