摘要
4个直立叶型杂交种、3个种植行距(67cm等行条播、50cm等行条播、六角形穴播)、3个密度处理(6.0万、7.5万和9.0万株/hm2)的田间试验结果表明:行距对玉米产量的效应在中、低密度时不显现,在较高密度条件下才能显现,密度×行距对玉米具有(1+1)>2的耦合增产效应。
The result of field experiment by using 4 leaf straight-up type maize hybrids, 3 planting model （50 cm row distance, 6-angle shape, 67 cm row distance）, 3 density （60 000 plants/ha, 75 000 plants/ha, 90 000 plants/ha） indicated that the maize yield difference from different plant-row distance conduced is not apparent under the lower and middle density, only did it apparent under high density（75 000 - 90 000 plants/ha）; There was （1 ＋ 1）〉2 combination yield increase effect in process of maize produce using the optimum density × row distance.
出处
《玉米科学》
CAS
CSCD
北大核心
2006年第2期108-111,共4页
Journal of Maize Sciences
基金
西北农林科技大学植物遗传育种专项(05YZ008-4)
关键词
玉米
产量潜力
栽培措施
Maize
Yield potential
Cultivation techniques
