ACTA AGRICULTURAE BOREALI-SINICA ›› 2020, Vol. 35 ›› Issue (S1): 227-233. doi: 10.7668/hbnxb.20190946

Special Issue: Corn Soil fertilizer

• Resources and Environment·Plant Protection • Previous Articles     Next Articles

Effects of Optimized Fertilization on the Emergence, Growth and Yield of Maize at Low Temperature

SUN Lei, WANG Lihua, GAO Zhongchao, TONG Yuxin, ZHANG Lei, CHANG Benchao, WANG Shuang   

  1. Soil Fertilizer and Environment Resource Institute of Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China
  • Received:2020-06-05 Published:2020-12-28

Abstract: In order to study the effects of bio organic fertilizer,silicon calcium fertilizer and zinc fertilizer on emergence,growth and yield of maize. We took of Demeya 1 as experimental materials,experiments were carried out in randomized complete block design with 3 replications. Set up two sowing dates,the first stage of sowing corn was fertilized,and the second stage was not fertilized. Then studied emergence rate,biomass,root growth,physiological characteristics,growth and yield of maize. The results showed that under low temperature condition,the seedling emergence rate could be increased by each optimized fertilization,the seedling emergence rate of T2,T3 and T4 treatments on the 4th,6th and 8th days were significantly higher than T1 treatment. The fresh weight of T2,T3 and T4 treatments were 1.77,2.26 and 2.07 times as big as T1 treatment,respectively. The soluble protein content of T2,T3 and T4 were 1.19,1.95 and 2.09 as big as T1 treatment,respectively. And root length,root surface area,root volume and superoxide dismutase content were increased by each optimized fertilization. The POD content of T4 treatment was lower than that of T1 treatment,the POD content of other treatment was higher than that of T1. The proline content of T2 treatment was lower than that of T1 treatment,and the proline content of other treatment was higher than that of T1 treatment. All fertilization increased the height of ear,the plant height of T3 was higher than that of T1,and plant height of T2 and T4 was slightly lower than that of T1. The yield of maize was increased by the optimized fertilization. The effect of T3 treatment (450 kg/ha total bio organic fertilizer) on improving the injury of low temperature to seedlings and promoting the growth of maize was better.

Key words: Maize, Bio organic fertilizer, Low temperature, Emergence rate, Yield

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Cite this article

SUN Lei, WANG Lihua, GAO Zhongchao, TONG Yuxin, ZHANG Lei, CHANG Benchao, WANG Shuang. Effects of Optimized Fertilization on the Emergence, Growth and Yield of Maize at Low Temperature[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2020, 35(S1): 227-233. doi: 10.7668/hbnxb.20190946.

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