由于各种作物在株高、株型、叶形、需光性和生育期等方面,都有较大的差异,实行间作和套种时只有注意作物合理搭配,尽量减少彼此间的不利影响,才能达到最大的增产效果。因此在选用作物时应注意: 1、高秆作物与矮秆作物搭配。如玉米为主间作豆类;甘薯为主间作玉米等可以改善田间通风透光条件,充分利用光照,对两种作物生长都有利。 Due to the large differences in plant height, plant type, leaf shape, light requirement and growth period among crops, it is only necessary to pay attention to the rational collocation of crops when intercropping and intercropping are implemented and minimize the adverse effects on each other Achieve the largest yield increase. Therefore, the selection of crops should be noted: 1, high-stalk crops and dwarf crops with. Such as intercropping beans as beans; sweet potato-based intercropping corn, etc. can improve the field ventilation and light conditions, make full use of light, the growth of both crops are beneficial.