CAJ | 학술논문

在不同地点、不同肥力的菜地上设置辣椒田间肥料试验，对施肥量、土壤有效养分含量(碱解氮、有效磷、有效钾)和辣椒相对产量等试验数据进行相关统计分析，并求取相应的回归方程，建立合适的数学模型，以此初步建立粤北高寒山区辣椒土壤有效养分丰缺指标和不同肥力土壤的推荐施肥量指标。结果表明，辣椒的碱解氮、有效磷、速效钾丰缺指标的数学模型分别为(相对产量)=28.986 ln -47.292(R2=0.6647，=12)、(相对产量)=15.77 ln +34.191(R2=0.8056，=12)、(相对产量)=25.745 ln -17.434(R2=0.9429，=12)；辣椒的推荐施氮、磷、钾肥总量数学模型分别为=-2.8262 ln +24.438(R2=0.4889，=12)、=-4.4845 ln +24.077(R2=0.845，=12)、=-2.5219 ln +21.403(R2=0.4311，=12)。并根据推荐施肥量数学模型计算出乐昌市辣椒不同土壤有效养分含量的推荐施肥总量，当土壤碱解氮含量分别为<30.74、30.74～72.82、72.82～145.18、>145.18 mg/kg时，推荐的总施氮量分别为>14.76、12.32～14.76、10.37～12.32、<10.37 kg/667 m2；当土壤有效磷含量为<2.72、2.72～13.3、13.3～47.27、>47.27 mg/kg时，推荐的总施磷量分别为>19.59、19.59～12.47、12.47～6.78、<6.78 kg/667 m2；当土壤有效钾含量分别为<13.73、13.73～36.25、36.25～78.82、>78.82 mg/kg时，推荐的总施钾量分别为>14.8、12.35～14.8、10.39～12.35、<10.39 kg/667 m2。
재불동지점、불동비력적채지상설치랄초전간비료시험，대시비량、토양유효양분함량(감해담、유효린、유효갑)화랄초상대산량등시험수거진행상관통계분석，병구취상응적회귀방정，건립합괄적수학모형，이차초보건립월북고한산구랄초토양유효양분봉결지표화불동비력토양적추천시비량지표。결과표명，랄초적감해담、유효린、속효갑봉결지표적수학모형분별위(상대산량)=28.986 ln -47.292(R2=0.6647，=12)、(상대산량)=15.77 ln +34.191(R2=0.8056，=12)、(상대산량)=25.745 ln -17.434(R2=0.9429，=12)；랄초적추천시담、린、갑비총량수학모형분별위=-2.8262 ln +24.438(R2=0.4889，=12)、=-4.4845 ln +24.077(R2=0.845，=12)、=-2.5219 ln +21.403(R2=0.4311，=12)。병근거추천시비량수학모형계산출악창시랄초불동토양유효양분함량적추천시비총량，당토양감해담함량분별위<30.74、30.74～72.82、72.82～145.18、>145.18 mg/kg시，추천적총시담량분별위>14.76、12.32～14.76、10.37～12.32、<10.37 kg/667 m2；당토양유효린함량위<2.72、2.72～13.3、13.3～47.27、>47.27 mg/kg시，추천적총시린량분별위>19.59、19.59～12.47、12.47～6.78、<6.78 kg/667 m2；당토양유효갑함량분별위<13.73、13.73～36.25、36.25～78.82、>78.82 mg/kg시，추천적총시갑량분별위>14.8、12.35～14.8、10.39～12.35、<10.39 kg/667 m2。
In this paper, we set fertilization tests on the vegetable fields of different fertility levels and different locations for hot pepper, and investigated the fertilizer application amounts (N, P2O5, K2O), soil available nutrients content and relative yield of hot pepper, then we acquired related regression equations. Based on the regression equations, we established proper mathematical models, and then we initially obtained the richness and deficient status indexes of soil available nutrients content and recommend fertilizer application amounts for hot pepper in alpine area of north Guangdong. The results showed that, the mathematical models for alkeline-N, olsen-P and olsen-K were (relative yield)=28.986 ln -47.292 (R2=0.664 7, =12), =15.77 ln +34.191 (R2=0.805 6, =12) and =25.745 ln -17.434 (R2=0.942 9,=12) respectively, and the mathematical models for application amount of N, P2O5 and K2O were =-2.826 2 ln +24.438 (R2=0.488 9, =12), =-4.484 5 ln +24.077 (R2=0.845, =12) and =-2.521 9 ln +21.403 (R2=0.431 1, =12). Then we calculated out the total recommended fertilizer application amount for the fields with different soil available nutrients contents based on the mathematical models. The recommended total application amounts of nitrogen fertilizer were>14.76, 14.76-12.32, 12.32-10.37 and <10.37 kg/667 m2, while the contents of alkeline-N were <30.74, 30.74-72.82, 72.82-145.18, >145.18 mg/kg. The recommended total application amounts of phosphorus fertilizer were >19.59, 19.59-12.47, 12.47-6.78 and<6.78 kg/667 m2, while the contents of olsen-P were<2.72, 2.72-13.3, 13.3-47.27 and>47.27 mg/kg. The recommended total application amounts of potassium fertilizer were>14.8, 14.8-12.35, 12.35-10.39 and<10.39 kg/667 m2, while the contents of olsen-K were<13.73, 13.73-36.25, 36.25-78.82 and>78.82 mg/kg.