Effects of super absorbent polymers on yield and water-saving and drought-escaping mechanism in spring maize | 不同类型保水剂对春玉米节水避旱机理及产量的影响
2009
Tang Haiming, Hunan Academy of Agricultural Sciences, Changsha (China), Soil and Fertilizer Institute | Tang Wenguang, Hunan Academy of Agricultural Sciences, Changsha (China), Soil and Fertilizer Institute | Xiao Xiaoping, Hunan Academy of Agricultural Sciences, Changsha (China), Soil and Fertilizer Institute
The effects of super absorbent polymers (SAP) on yield as well as water-saving and drought-escaping mechanism in spring maize in the seasonal drought region were studied. As shown by the results, during the seasonal drought in southern China, SAP treatment promoted the soil moisture, improved the capability of absorption and transportation of roots, promoted physiological and biochemical functions, increased the chlorophyll content, photosynthetic rate and intercellular CO2 concentration, and reduced the stomatal conductance and transpiration rate. As a result, the economic characters of spring maize were improved, and the yield was increased.
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