贵州农业科学
貴州農業科學
귀주농업과학
GUIZHOU AGRICULTURAL SCIENCES
2013年
12期
50-54
,共5页
李云%冯跃华%王小艳%武彪
李雲%馮躍華%王小豔%武彪
리운%풍약화%왕소염%무표
主成分回归分析%土壤养分%水稻%产量%安顺%贵州
主成分迴歸分析%土壤養分%水稻%產量%安順%貴州
주성분회귀분석%토양양분%수도%산량%안순%귀주
principal component regression%soil nutrient%rice%yield%Anshun%Guizhou
为了解农田系统内土壤养分对水稻产量的影响,根据土壤养分的含量预测水稻产量,利用主成分回归的方法研究贵州省安顺市西秀区文星村76个样点11种土壤养分含量与水稻产量的关系。结果表明:1)土壤养分中,土壤有机质、碱解氮、有效磷、速效钾、全钾、有效铜、有效铁和有效锰的含量分别为21.85~44.06 g/kg、95.81~276.36 mg/kg、7.07~58.88 mg/kg、41.23~486.4 mg/kg、8.33~27.84 g/kg、1.91~12.42 mg/kg、0.03~270.79 mg/kg 和0.002~83.33 mg/kg,其余变幅较小。有效锰(113.74%)为强变异,其他土壤养分和水稻产量均属于中等变异性。2)土壤养分与产量均存在相关性,但仅速效钾与水稻产量之间的相关性达到显著水平。土壤养分之间,有机质、全钾、有效铜和有效锌对土壤氮肥的影响较大,有效磷对其他土壤养分的影响较小。3)得出回归方程 y =8552.3238+47.5426x 1-85.7106x 2+25.2090x 3+229.5989x 4-10.6350x 5+197.7726x 6-193.1247x 7-44.4309x 8+62.5105x 9-76.9663x 10+61.8409x 11,速效钾、全磷、有效锌、有效锰、有机质、有效磷对水稻产量的影响较大,且按顺序逐级递减,其余土壤养分对产量的影响较小。
為瞭解農田繫統內土壤養分對水稻產量的影響,根據土壤養分的含量預測水稻產量,利用主成分迴歸的方法研究貴州省安順市西秀區文星村76箇樣點11種土壤養分含量與水稻產量的關繫。結果錶明:1)土壤養分中,土壤有機質、堿解氮、有效燐、速效鉀、全鉀、有效銅、有效鐵和有效錳的含量分彆為21.85~44.06 g/kg、95.81~276.36 mg/kg、7.07~58.88 mg/kg、41.23~486.4 mg/kg、8.33~27.84 g/kg、1.91~12.42 mg/kg、0.03~270.79 mg/kg 和0.002~83.33 mg/kg,其餘變幅較小。有效錳(113.74%)為彊變異,其他土壤養分和水稻產量均屬于中等變異性。2)土壤養分與產量均存在相關性,但僅速效鉀與水稻產量之間的相關性達到顯著水平。土壤養分之間,有機質、全鉀、有效銅和有效鋅對土壤氮肥的影響較大,有效燐對其他土壤養分的影響較小。3)得齣迴歸方程 y =8552.3238+47.5426x 1-85.7106x 2+25.2090x 3+229.5989x 4-10.6350x 5+197.7726x 6-193.1247x 7-44.4309x 8+62.5105x 9-76.9663x 10+61.8409x 11,速效鉀、全燐、有效鋅、有效錳、有機質、有效燐對水稻產量的影響較大,且按順序逐級遞減,其餘土壤養分對產量的影響較小。
위료해농전계통내토양양분대수도산량적영향,근거토양양분적함량예측수도산량,이용주성분회귀적방법연구귀주성안순시서수구문성촌76개양점11충토양양분함량여수도산량적관계。결과표명:1)토양양분중,토양유궤질、감해담、유효린、속효갑、전갑、유효동、유효철화유효맹적함량분별위21.85~44.06 g/kg、95.81~276.36 mg/kg、7.07~58.88 mg/kg、41.23~486.4 mg/kg、8.33~27.84 g/kg、1.91~12.42 mg/kg、0.03~270.79 mg/kg 화0.002~83.33 mg/kg,기여변폭교소。유효맹(113.74%)위강변이,기타토양양분화수도산량균속우중등변이성。2)토양양분여산량균존재상관성,단부속효갑여수도산량지간적상관성체도현저수평。토양양분지간,유궤질、전갑、유효동화유효자대토양담비적영향교대,유효린대기타토양양분적영향교소。3)득출회귀방정 y =8552.3238+47.5426x 1-85.7106x 2+25.2090x 3+229.5989x 4-10.6350x 5+197.7726x 6-193.1247x 7-44.4309x 8+62.5105x 9-76.9663x 10+61.8409x 11,속효갑、전린、유효자、유효맹、유궤질、유효린대수도산량적영향교대,차안순서축급체감,기여토양양분대산량적영향교소。
The relationship between soil nutrient and rice yield was studied by the principal component regression method from analyzing 11 soil nutrients content of 76 sample points,Wenxin village,Xixiu District,Anshun,Guizhou to understand the effect of soil nutrients content on rice yield within the cropland system.The results showed that:1)The organic matter,available nitrogen,available P,rapidly available K,total K,available Cu and available Fe content with a medium variability was 21.85~44.06 g/kg,95.81~276.36 mg/kg,7.07~58.88 mg/kg,41.23~486.4 mg/kg ,8.33~27.84 g/kg ,1.91~12.42 mg/kg and 0.03~270.79 mg/kg 0.002~83.33 mg/kg respectively and the available Mn content with a higher variability was 0.002~83.33 mg/kg;2)There was a correlation between soil nutrient and rice yield but the correlation between rapidly available K and rice yield reached the significant level only.The organic matter,total K,available Cu and available Zn content had the greater effect on nitrogen content in soil but available P had the lesser effect on other nutrients in soil among 11 soil nutrients;3)The regression equation,y = 8 552.323 8 + 47.542 6x 1 - 85.710 6x 2 + 25.209 0x 3 + 229.598 9x 4 - 10.635 0x 5 +197.772 6x 6 -193.124 7x 7 -44.430 9x 8 +62.510 5x 9 -76.966 3x 10 +61.840 9x 11 was established,which represented that available K had the great effect on rice yield,followed by total P,available Zn,available Mn,organic matter and available P.