LED灯模拟作物间作套种群体内光环境的设计与应用

Design and effect of LED simulated illumination environment on intercropping population

摘要: 在室内有效模拟作物复合群体内的光环境，是深入研究作物间作套种分子生态机理的基础。该文首先设计了一种用于植物室内培养的发光二极管（LED）照明灯具，其主要特点包括：选用蓝光、红光、远红光3种对作物生长发育影响最大的高功率LED灯珠为光源，按照1:3:3的比例进行组合，从而形成光照均匀的光源板；应用散热片、风道、风扇对光源板进行有效散热；采用脉宽调制（PWM）方式实现每种灯辐射强度的连续、独立调节。为进一步验证其功能，以玉米-大豆套作模式为例，根据田间自然光环境和两作物复合群体内光环境的实际测定值，采用所设计

Abstract: Simulating effectively illumination environment indoor for the compound crop population is the basis for further study on molecular mechanism of intercropping system. Therefore a light-emitting diode (LED) lamp was designed as the light source for cultiva