GUAN Tianxia, LI Caixia, MA Guotai, et al. Effects of Continuous Application of Organic Fertilizer on Cu and Zn Accumulation in Soil and the Yield and Quality of Pepper ([J]. 2020, 34(3): 219-225.
DOI:
GUAN Tianxia, LI Caixia, MA Guotai, et al. Effects of Continuous Application of Organic Fertilizer on Cu and Zn Accumulation in Soil and the Yield and Quality of Pepper ([J]. 2020, 34(3): 219-225. DOI: 10.13870/j.cnki.stbcxb.2020.03.033.
Effects of Continuous Application of Organic Fertilizer on Cu and Zn Accumulation in Soil and the Yield and Quality of Pepper (
Based on the randomized block test with different amount of chicken manure and pig manure application (0
15
30
45 and 60 t/hm2)
the characteristics of accumulation and migration of Cu and Zn in soil profile
the changes in yield
quality
and the content of Cu and Zn in different organs of pepper (roots
stems
leaves
and fruits) were studied. The results showed that the content of Cu and Zn was significantly increased in the tillage layer (0-20 cm) after chicken and pig manure application. Compared to CK
the increase of Cu content reached 22.60%~66.59% and 36.13%~95.00% respectively
and the increase of Zn content reached 10.49%~39.27% and 11.18%~51.94% respectively. The increase of soil Cu and Zn content in the tillage layer (0-20 cm) after application of pig manure was greater than that of chicken manure. The content of Cu and Zn in chicken and pig manure were mainly accumulated in the soil tillage layer (0-20 cm). The highest content of Cu and Zn was 36.95 mg/kg and 137.24 mg/kg
which did not exceed the national safety level. The migration of Cu and Zn to deeper soil was significantly after 60 t/hm2 chicken and pig manure application. The downward migration of Cu and Zn in chicken manure was smaller than pig manure treatment. The single fruit weight and yield of pepper significantly increased after chicken and pig manure application
and reached the highest at the 30 t/hm2 application
the yield increased 24.98% and 29.04% compared to CK. The Vc content
the soluble sugar content
and the soluble protein content significantly increased
but the nitrate content significantly decreased after high amount of chicken and pig manure (60 t/hm2) application. Application of 15 t/hm2 chicken manure and 60 t/hm2 pig manure significantly increased Cu content in pepper fruits
but the Cu content did not exceed 20 mg/kg
which was a safe level for eating. The application of chicken and pig manure had no significant effect on the content of Zn in the fruits (from 16.35 to 20.87 mg/kg). It can be concluded that rational application of chicken and pig manure can improve soil properties
increase crop yield and quality in a short term. Although chicken and pig manure application can cause the accumulation of Cu and Zn in the tillage layer (0-20 cm)
it has not caused soil pollution of Cu and Zn
and affect the safety of pepper fruits
while further monitoring is necessary if long-term application.
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Related Institution
National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, School of Resources and Environment, Shandong Agricultural University, Taian
Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China, Collaborative Innovation Center for the Modernization Production of Double Cropping Rice, Jiangxi Agricultural University
Dry Land Agriculture Institute, Gansu Academy of Agricultural Sciences
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College of Chemistry and Material Science, Shandong Agricultural University, Taian