CAJ | 학술논문

在海南省儋州市进行甘蔗养分限制因子OPT试验，结果表明：OPT处理产量最高，达115.06 t/hm2，OPT施肥方案即施N 373 kg/hm2， P2O5225 kg/hm2，K2O 563 kg/hm2为甘蔗生产的平衡施肥方法；甘蔗各生育期植株N、P、K含量变化为分蘖盛期>苗期>拔节期>收获期，且K>N>P；由产量结果确定出N、K肥为试验地甘蔗养分限制因子。
재해남성담주시진행감자양분한제인자OPT시험，결과표명：OPT처리산량최고，체115.06 t/hm2，OPT시비방안즉시N 373 kg/hm2， P2O5225 kg/hm2，K2O 563 kg/hm2위감자생산적평형시비방법；감자각생육기식주N、P、K함량변화위분얼성기>묘기>발절기>수획기，차K>N>P；유산량결과학정출N、K비위시험지감자양분한제인자。
An OPT experiment was conducted to study nutrient limiting factors of sugarcane in Danzhou City of Hainan Province. The results showed that the highest sugarcane yield was under the OPT treatment, which reached 115.06 t/hm2. The OPT fertilization scheme, namely the balanced fertilization method for sugarcane production was N of 373 kg/hm2, P2O5 225 kg/hm2, and K2O 563 kg/hm2. The changes in contents of N, P and K in each growth period of sugarcane was in an order of tillering period>seedling period>jointing period>harvest period, and K>N>P. The sugarcane yield indicated that N and K were the main nutrient limiting factors of sugarcane in the experimental site.