CAJ | 학술논문

2008-2010年在江西省吉安市13个县(市、区)开展42个“3414”晚稻田间肥效试验。结果表明：各试验点土壤有较高的土壤碱解氮含量(116~209 mg/kg),但相对产量(60%~85%)较低,施用氮肥增产效果显著,推荐施氮量为110~210 kg/hm2；试验区土壤速效钾含量为61~119 mg/kg,相对产量为85%~100%,按土壤速效钾丰缺指标划分为中高等级,施用钾肥有较好的增产效果,推荐施钾量为0~130 kg/hm2；试验区土壤有效磷含量为11~31 mg/kg,相对产量为85%~100%,按土壤有效磷丰缺指标划分为中高等级,推荐施磷量为0~80 kg/hm2,施用磷肥效果低于氮肥和钾肥。
2008-2010년재강서성길안시13개현(시、구)개전42개“3414”만도전간비효시험。결과표명：각시험점토양유교고적토양감해담함량(116~209 mg/kg),단상대산량(60%~85%)교저,시용담비증산효과현저,추천시담량위110~210 kg/hm2；시험구토양속효갑함량위61~119 mg/kg,상대산량위85%~100%,안토양속효갑봉결지표화분위중고등급,시용갑비유교호적증산효과,추천시갑량위0~130 kg/hm2；시험구토양유효린함량위11~31 mg/kg,상대산량위85%~100%,안토양유효린봉결지표화분위중고등급,추천시린량위0~80 kg/hm2,시용린비효과저우담비화갑비。
To use chemical fertilizers rationally,reduce the resources waste and enhance fertilization effi-ciency,42 “3414” field experiments for late rice were conducted in 13 counties and regions in Ji′an city,Jiangxi Province from 2008 to 2010 to study the effect of soil testing and formulated fertilization on rice production. The results showed that the relative yield of late rice was 60%-85% when soil alkali-N content ranged from 116 mg/kg to 209 mg/kg. The recommendation of fertilizer N rate for late rice was 110-210 kg/hm2 . The relative yield of late rice was 85%-100% when soil available K content ranged from 61 mg/kg to 119 mg/kg,indicating applying potassium fertilizer could improve yield. The recommended amount of K fertilizer application was 0-130 kg/hm2 . There were high soil available P content and relative yield of late rice in the experimental regions,which were 11-31 mg/kg and 85%-100%,respectively. Fertilizing quantity recommended for P was 0-80 kg/hm2 . The effect of P fertilizer was inferior to N and K. The recommended nitrogen fertilizing level calculated according to the high soil alkali-N content and low relative yield of late rice was relatively high.