Effects of activated carbon on agronomic traits and yield of spring maize
WANG Zengli1, FENG Hao2,3, FANG Yuan2
1.State Key Experimental Station for Efficient Irrigation Water Use in Wuwei City, Wuwei, Gansu 733000, China; 2.Institute of Water Saving Agriculture in Arid Areas of China, Northwest A & F University, Yangling, Shaanxi 712100, China; 3.Institute of Water and Soil Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China
Abstract：Effects of activated carbon on agronomic traits and yield of spring maize were studied by using pot experiments. The results show that the growth rate of the growth period and chlorophyll content of spring maize first increase and then decrease with the increasing of activated carbon(0-9 g/kg). The total dry matter accumulation of spring maize has shown a decline in seeding and a rise in heading. The soil blended with activated carbon increase upper biomass of spring maize in the vegetative growth stage, whereas it had a threshold value for underground biomass in the reproductive growth stage. The root growth was dramatically inhibited when the content of activated carbon was more than 6 g/kg. The number of grains and ear length have a significant positive correlation with kernel yield, and the kernel percentage had a significant or an extremely significant positive correlation with the root-shoot ratio. In conclusion, the soil blended with activated carbon could obviously increase the number of grains, the root-shoot ratio and the yield of spring maize. Blending 1 g/kg of activated carbon to soil was effective and optimal to the yield of spring maize.
王增丽, 冯浩,, 方圆. 活性炭对春玉米农艺性状及产量的影响[J]. 排灌机械工程学报, 2017, 35(2): 172-177.
WANG Zengli, FENG Hao,, FANG Yuan. Effects of activated carbon on agronomic traits and yield of spring maize. Journal of Drainage and Irrigation Machinery Engin, 2017, 35(2): 172-177.
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