粮草间作的光能利用率和产量的关系

Effects of Crop sweetclover Intercropping on Sunlight Utitilization and the Yields of Corn and Sweetclover

为探讨农牧结合发展现代生态农业的途径，进行了五年粮草间作试验。并对其光能利用效率进行了研究。结果表明间作比单作群体内光分布均匀，光照强度中层和底层分别提高６６．８８％和４１．５３％。光能利用率平均提高了２３．８７％，生物产量提高３４．９５％。

The experiment of crop sweetclover intercrop ping was carried out in last five years for searching the way of the modern ecological agriculture which combines the crop production and livestock. The results showed that the sunlight distribition inside intercropping corn canopy was even and the sunlight intensity was raised by 66.88% in the middle part of the corn canopy and 41.53% in the lower part, comparing to monoculture of corn. The rate of sunlight utilization in the intercropping corn increased by 23.8% and the bio mass increased by 34.95%.