甘肃农业大学学报
甘肅農業大學學報
감숙농업대학학보
JOURNAL OF GANSU AGRICULTURAL UNIVERSITY
2014年
2期
61-65,71
,共6页
刘淑梅%黄鹏%柴强%谢鹏虓%彭正凯
劉淑梅%黃鵬%柴彊%謝鵬虓%彭正凱
류숙매%황붕%시강%사붕효%팽정개
绿洲灌区%玉米%豌豆%空间布局%种间竞争力%产量
綠洲灌區%玉米%豌豆%空間佈跼%種間競爭力%產量
록주관구%옥미%완두%공간포국%충간경쟁력%산량
oasis irrigated area%maize%pea%spatial arrangement%interspecies competitiveness%yield
为了提高玉米/豌豆种植模式的生产水平,在甘肃省绿洲灌区,试验通过调整玉米/豌豆带田中两作物的间距及玉米行距,研究了不同空间布局对玉米/豌豆复合群体的光合物质积累、种间竞争力及经济产量的影响.结果表明：各试验处理复合群体的干物质积累量都符合Logistic的“S”型生长曲线,其中间作玉米、豌豆的干物质积累量都以间距30 cm的处理最大,较间距15 cm和45 cm的处理提高了19.5%、18.0%和25.9%、25.6%,间距的改变对间作豌豆的干物质积累影响不显著.间作模式中整个共生期内玉米相对豌豆的竞争力均大于0,其中以间距45 cm处理最大为0.50,较间距30 cm和间距15 cm的处理高31.6%和16.3%.间作与单作相比较增产优势明显,间作各处理的土地当量比均在1.20以上,两作物间距30 cm时,经济产量最大,两作物总产量为12915 kg/hm2,比间距15 cm和间距45 cm的处理分别提高了11.8%和11.1%.
為瞭提高玉米/豌豆種植模式的生產水平,在甘肅省綠洲灌區,試驗通過調整玉米/豌豆帶田中兩作物的間距及玉米行距,研究瞭不同空間佈跼對玉米/豌豆複閤群體的光閤物質積纍、種間競爭力及經濟產量的影響.結果錶明：各試驗處理複閤群體的榦物質積纍量都符閤Logistic的“S”型生長麯線,其中間作玉米、豌豆的榦物質積纍量都以間距30 cm的處理最大,較間距15 cm和45 cm的處理提高瞭19.5%、18.0%和25.9%、25.6%,間距的改變對間作豌豆的榦物質積纍影響不顯著.間作模式中整箇共生期內玉米相對豌豆的競爭力均大于0,其中以間距45 cm處理最大為0.50,較間距30 cm和間距15 cm的處理高31.6%和16.3%.間作與單作相比較增產優勢明顯,間作各處理的土地噹量比均在1.20以上,兩作物間距30 cm時,經濟產量最大,兩作物總產量為12915 kg/hm2,比間距15 cm和間距45 cm的處理分彆提高瞭11.8%和11.1%.
위료제고옥미/완두충식모식적생산수평,재감숙성록주관구,시험통과조정옥미/완두대전중량작물적간거급옥미행거,연구료불동공간포국대옥미/완두복합군체적광합물질적루、충간경쟁력급경제산량적영향.결과표명：각시험처리복합군체적간물질적루량도부합Logistic적“S”형생장곡선,기중간작옥미、완두적간물질적루량도이간거30 cm적처리최대,교간거15 cm화45 cm적처리제고료19.5%、18.0%화25.9%、25.6%,간거적개변대간작완두적간물질적루영향불현저.간작모식중정개공생기내옥미상대완두적경쟁력균대우0,기중이간거45 cm처리최대위0.50,교간거30 cm화간거15 cm적처리고31.6%화16.3%.간작여단작상비교증산우세명현,간작각처리적토지당량비균재1.20이상,량작물간거30 cm시,경제산량최대,량작물총산량위12915 kg/hm2,비간거15 cm화간거45 cm적처리분별제고료11.8%화11.1%.
Effects of different inter-specific spacing between pea and maize strips in maize/pea inter-cropping system on inter-specific aggressivity and grain yield were studied via a field experiment in arid oa-sis irrigated area in Gansu.Results showed that dry matter accumulation of each component crops in maize/pea intercropping was fitted to the Logistic growth function.Dry matter weight of intercropped maize was greatest in 30 cm spacing between pea and maize strips,an increase of 19.5% and 18.0%,as compared to 15 cm spacing and 45 cm spacing,respectively.It had no significant effect of strips spacing on dry matter accumulation of intercropped pea.Aggressivity of maize/pea intercropping was greater than 0 in co-growth period.Aggressivity for intercropped maize towards pea intercrops was greatest in 45 cm strips spacing, with a value of 0.50,an increase of 31.6% and 16.3%,as compared to 30 cm spacing and 15 cm spacing, respectively.Intercropping had significant yield advantages over sole crops,with their LER was greater than 1.20 among treatments.Grain yield was greatest in 30 cm strips spacing,with its yield of 12 915 kg/hm2 ,an increase of 11.8% and 11.1%,as compared to 15 cm spacing and 45 cm spacing,respectively.
