“玉米田养鹅”模式下的玉米植株苗期生长研究

Study on the seedling growth of maize plants under the model of“Raising geese in cornfields”

为了明确不同生产模式对玉米苗期生长状况的影响,以玉米田养鹅(RGC)生产模式为研究对象,采用对比法对杂草群落状况和苗期玉米状况进行调查分析。结果表明,杂草群落地上生物量比对照略低,处理间差异不显著;RGC处理玉米植株叶长、叶宽、叶面积、茎粗、鲜重、干重均高于对照,处理间差异不显著,但RGC处理株高极显著高于对照,RGC处理叶绿素含量显著低于对照,RGC处理玉米产量显著低于对照。经过连续4年的长期定位试验后,玉米田养鹅有助于总体上改善苗期玉米的植株生长状况,而秋季玉米产量的降低则是由于后期管理因素造成的。

In order to clarify the effects of different production modes on the growth of maize at seedling stage,the weed community status and maize status at seedling stage were investigated and analyzed by using the method of contrast with the production mode of breeding goose(RGC)in corn field.The results showed that the above ground biomass of weed communities was slightly lower than that of CK,and there was no significant difference between treatments.The leaf length,leaf width,leaf area,stem diameter,fresh weight and dry weight of maize of RGC treatment were higher than that of control(CK),and there was no significant difference be⁃tween the treatments,but plant height of the RGC treatment was significantly higher than the CK,and the chlorophyll content of the RGC was significantly lower than that of the CK,however,the maize yield of RGC was significantly lower than that of CK.After 4 years of long-term positioning tests,the treatment of RGC increased the species and biomass of the weed community,and improved the growth of the maize at the seedling stage in general,the final reduction of corn yield in autumn was due to later management factors.