【摘 要】
：
80年代初期,辽北的米麦间作主要形式有三比麦与二比麦.实践证明,米麦间作增产的核心是增加玉米株数,在平肥地上,施肥水平较高的条件下,三比麦在密度较高的情况下,玉米群体与
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80年代初期,辽北的米麦间作主要形式有三比麦与二比麦.实践证明,米麦间作增产的核心是增加玉米株数,在平肥地上,施肥水平较高的条件下,三比麦在密度较高的情况下,玉米群体与个体发育协调,而二比麦在密度较高的情况下,纵向株间就会出现“负荷超载”,个体发育受到抑制,产量性状变劣,
In the early 1980s, the main forms of rice and wheat intercropping in northern Liaoning were three biema and two biema. Practice has proved that the core of intercropping mie intercropping is to increase the number of maize, in the flat fertilizer field, fertilization level is high, Under the condition of higher density, the development of maize population is coordinated with that of individuals. When the density of two maize is higher than that of two maize, “overload” will occur between vertical strains, the individual development will be inhibited, the yield traits become worse,
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