CAJ | 학술논문

在田间试验条件下设置K1（K2 O为0 kg/hm2）、K2（ K2 O为75.00 kg/hm2）、K3（K2 O为112.50 kg/hm2）3个处理，研究了钾肥对马铃薯养分吸收和品质的影响。结果表明，在收获期，马铃薯干物质积累量K3处理最高，分别比K1、K2处理提高42.16％、37.29％；氮吸收量K1、K2、K3处理分别达到220.39、235.31、306.46 kg/hm2；磷吸收量以 K3处理最高，比 K2处理提高20.38％；钾吸收量以K3处理最高，分别比K1、K2提高64.44％、26.14％。产量以K3处理最高，分别比K1、K2处理提高97.48％、44.47％。随着施钾量的增加还原糖含量呈现增加趋势，维生素C含量呈现降低趋势。综合分析认为，黑龙江马铃薯栽培地区钾肥用量以112.50 kg/hm2为宜。
재전간시험조건하설치K1（K2 O위0 kg/hm2）、K2（ K2 O위75.00 kg/hm2）、K3（K2 O위112.50 kg/hm2）3개처리，연구료갑비대마령서양분흡수화품질적영향。결과표명，재수획기，마령서간물질적루량K3처리최고，분별비K1、K2처리제고42.16％、37.29％；담흡수량K1、K2、K3처리분별체도220.39、235.31、306.46 kg/hm2；린흡수량이 K3처리최고，비 K2처리제고20.38％；갑흡수량이K3처리최고，분별비K1、K2제고64.44％、26.14％。산량이K3처리최고，분별비K1、K2처리제고97.48％、44.47％。수착시갑량적증가환원당함량정현증가추세，유생소C함량정현강저추세。종합분석인위，흑룡강마령서재배지구갑비용량이112.50 kg/hm2위의。
In order to study the changes of nutrient absorption ,yield and quality in Solanum tu-berosum L .under different potassium levels ,a field experiment with randomized block design was conducted ,including 3 potassium treatments (K1 :0 kg/ha ,K2 :75 .00 kg/ha ,and K3 :112 .50 kg/ha) and 3 replications .The results showed that the dry matter accumulation of Solanum tu-berosum L .was the highest in K3 treatment ,which was 42 .16% and 37 .29% higher than K1 and K2 ,respectively ;the nitrogen uptake of K1 ,K2 and K3 treatments reached to 220 .39 ,235 .31 and 306 .46 kg/ha in harvest ;the phosphorus uptake of K3 was 20 .38% higher than that of K2 in harvest ;and the potassium uptake of K3 treatment reached to 204 .48 kg/ha in harvest ,64 .44%and 26 .14% higher than K1 and K2 ,respectively .K3 treatment had the highest yield ,increased by 97 .48% and 44 .47% compared to K1 and K2 .With the increase of potassium amount ,the content of reducing sugar increased ,w hile the vitamin C decreased .T he results suggested that the opti-mum amount of potassium fertilizer was 112 .50 kg/ha for potato in Heilongjiang .