桑树/大豆间作和混作模式下的生长及光合特性

[目的]为桑树/大豆复合模式的合理空间配置提供理论依据,为桑树/大豆复合模式的推广提供技术支持。[方法]分别研究了1年生桑树幼苗与大豆在间作和混作模式下桑树幼苗和大豆的生长及光合特性。[结果]1年生桑树幼苗在间作和混作模式下均不会影响大豆的生长及光合特性,但间作模式下桑树幼苗叶片的各项生长及光合指标明显优于单作。但1年生桑树幼苗与大豆在混作模式下二者地上部分有明显的光能竞争,大豆限制了桑树幼苗的生长。[结论]与大豆间作可以提高1年生桑树幼苗的光合生产能力和植株的生长。新移栽的1年生桑树幼苗不宜与大豆混作。

Growth and Photosynthesis Characteristics in Leaves of Mulberry and Soybean in Intercropping and Mixed Cropping Systems

[Objective]It provides theoretical basis for reasonable space configuration model of mulberry/soybean,provides the technical support for the promotion of mulberry/soybean compound model.[Method]Investigated the growth and photosynthesis characteristics of one-year-old mulberry in intercropping and mixed cropping system.[Result] The growth and photosynthesis characteristics of soybean was not apparently affected in intercropping and mixed cropping system.Whereas the growth and photosynthetic indices in leaves of mulberry seedling in the intercropping system were superior to the monoculture.But the aerial parts of one-year-old mulberry seedlings and soybean had a significant competition for light in mixed cropping system,thus inhibited the growth of one-year-old mulberry.[Conclusion]The photosynthetic production and the growth of the one-year-old mulberry seedlings could be elevated in the mulberry / soybean intercropping system.The transplantative one-year-old mulberry was not suitable to mixed cropping with soybean.