CAJ | 학술논문

以江苏省江都市水稻为例，基于地力差减法预测氮肥用量、养分丰缺指标法预测磷钾肥用量，构建县域测土配方施肥指标体系，研究分析20052011年测土配方施肥田间试验示范。结果表明，当种植水稻预测目标产量为68259270 kg/hm2（平均为8145 kg/hm2），氮肥推荐用量为146.4257.4 kg/hm2（平均为207.5 kg/hm2）。磷钾肥施用标准：当有效磷含量高于21 mg/kg，不推荐施用磷肥；当有效磷含量在1721 mg/kg时，推荐施磷（ P2 O5）量为40.5 kg/hm2；当有效磷含量在1017 mg/kg时，推荐施磷（ P2 O5）量为48 kg/hm2；当有效磷含量低于10 mg/kg时，推荐施磷（ P2 O5）量为64.5 kg/hm2。当速效钾含量高于140 mg/kg，不推荐施用钾肥；当速效钾含量在115140 mg/kg时，推荐施钾（K2O）量为22.5 kg/hm2；当速效钾含量在60115 mg/kg时，推荐施钾（K2O）量为40.5 kg/hm2；当速效钾含量低于60 mg/kg时，推荐施钾（ K2 O）量为82.5 kg/hm2。同时对施肥指标体系建立进行校验分析，结果表明基于试验建立施肥指标体系是可行的，从而为构建县域测土配方施肥指标体系提供了方法，达到因土施肥的目的。
이강소성강도시수도위례，기우지력차감법예측담비용량、양분봉결지표법예측린갑비용량，구건현역측토배방시비지표체계，연구분석20052011년측토배방시비전간시험시범。결과표명，당충식수도예측목표산량위68259270 kg/hm2（평균위8145 kg/hm2），담비추천용량위146.4257.4 kg/hm2（평균위207.5 kg/hm2）。린갑비시용표준：당유효린함량고우21 mg/kg，불추천시용린비；당유효린함량재1721 mg/kg시，추천시린（ P2 O5）량위40.5 kg/hm2；당유효린함량재1017 mg/kg시，추천시린（ P2 O5）량위48 kg/hm2；당유효린함량저우10 mg/kg시，추천시린（ P2 O5）량위64.5 kg/hm2。당속효갑함량고우140 mg/kg，불추천시용갑비；당속효갑함량재115140 mg/kg시，추천시갑（K2O）량위22.5 kg/hm2；당속효갑함량재60115 mg/kg시，추천시갑（K2O）량위40.5 kg/hm2；당속효갑함량저우60 mg/kg시，추천시갑（ K2 O）량위82.5 kg/hm2。동시대시비지표체계건립진행교험분석，결과표명기우시험건립시비지표체계시가행적，종이위구건현역측토배방시비지표체계제공료방법，체도인토시비적목적。
In this study , we constructed recommendation fertilization index system using rice as experimental materials at Jiangdu City in Jiangsu Province based on field experiments from 2005 to 2011, and determined N doses using soil fertility balance method , and determined P , K doses using nutrients abundance and deficiency index method.The results showed that when the target yield for rice was 6825-9270 kg/ha, averaging 8145 kg/ha, fertilizer N for rice was 146.4-257.4 kg/ha with an average of 207.5 kg/ha.Data indicated that when the the soil available P content exceeded 21 mg/kg, application of fertilizer P was unnecessary , and when the the soil available P content was ranged from 17 to 21 mg/kg, application amount of P 2 O5 should be 40.5 kg/ha, and when the soil available P content was ranged from 10 to 17 mg/kg, P2 O5 application was 48 kg/ha, and when the soil available P content was below 10 kg/ha, application of P2 O5 was 64.5 kg/ha.Fertilizer K should not be applied when the soil available K content exceeded 140 mg/kg, and application K2 O was 22.5 kg/ha when the soil available K content was from 115 to 140 mg/kg, and application of K 2 O was 40.5 kg/ha when the soil available K content was ranged from 60 to 115 mg/kg, and application of K 2 O was 82.5 kg/ha when the soil available K content was below 60 mg/kg.Fertilization index system was based on the field experiments and its availabality was testified in the serve for soil testing and formulated fertilization .