Study on the Photosynthetic Characteristics of Double-row Interlaced Thin-planting Spring Maize

The physiological ecological mechanisms related to the yield-increase of maize of the latest patent technology of double-row interlaced thin-planting in China were explored to provide the theoretical references and new ideas for high yield research of maize and other crops.The diurnal variations of photosynthetic characteristics of ear leaf of three planting patterns were compared,using Zhengdan 958 as the experimental material under high density(12.1×104 plants/hm2).The results showed that the double-row interlaced thin-planting maize had obvious physiological ecological advantages.The diurnal variation of photosynthesis showed bimodal curve,the relative light intensity of each layer was lower,fluorescent efficiency was higher while heat dissipation was lower,the strong light could be made full use of to reach the high yield.