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    Home > Food News > Food Articles > Scientists have revealed the mechanism by which different fertilizers regulate the phototensive use of leaves

    Scientists have revealed the mechanism by which different fertilizers regulate the phototensive use of leaves

    • Last Update: 2021-03-12
    • Source: Internet
    • Author: User
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    recently, the Journal of Experimental Botany published online the latest results of the Crop Nutrient Management Research Team of Huahua Agricultural University, revealing the role of nutrients in optimizing the carbon balance of leaves and maintaining the efficient photo close-up of leaves.Lu Jianxuan, author of the
    paper, said that China's winter rape cultivation conditions are poor, soil nutrients supply is insufficient, almost all fields need to apply nitrogen fertilizer, the need to apply phosphorus fertilizer, potash fertilizer and boron fertilizer area of about 90%, 70% and 80%, respectively. When nitrogen, phosphorus, potassium and boron nutrients are lacking, the rape leaves become smaller, affecting the interception and utilization of light energy, which eventually leads to reduced production. Blade carbon sequestration capacity and internal carbon distribution characteristics are essential to balance plant carbon revenue and expenditure and improve overall photolyting efficiency, but little is known about nutrition strategies to optimize blade carbon balance and improve the mechanisms for photo-cooperation.
    team explored the effects of nitrogen, phosphorus, potassium, and boron nutrient deficiency on the carbon economy of rape leaves at tissue and cellular levels. Lu Zhifeng, the first author of the paper, said that when nitrogen is lacking, the structural carbohydrate content of the leaf cell wall increases and the cell density increases, thus increasing the carbon input per leaf area;
    This shows that when the leaves are nutrient-scarce, more carbon is distributed to the non-photolysal structure, resulting in a decrease in the number of blade cells, a larger volume and an increase in cell wall thickness, while reducing carbon inputs related to photolysing function, reducing the number of serums and the effective area of the leaf greens facing the cell gap, increasing the resistance of CO
    transmission within the blades, and reducing the efficiency of photolithing.
    , it can be seen that the lack of different nutrients will reduce the leaf clean photolycing rate, reduce the plant carbon income. Reasonable nutrient supply is beneficial to improve the carbon balance of rape leaves, optimize the microstructur characteristics based on the carbon distribution of leaves, improve the transmission and assification efficiency of leaf CO
    , and lay the foundation for the high and stable production of rapeseed.
    relevant paper information:
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