Slow-release Fertilizer: Effects on Yield and Quality of Sugar Beet and Soil Urease Activity

doi:10.11924/j.issn.1000-6850.casb19030103

Abstract

Abstract: To increase the use efficiency of nitrogen, improve yield and quality of sugar beet and popularize the slow-release fertilizer application. We studied the effects of slow-release fertilizer and common fertilizer on the contents of chlorophyll, dry weight, sucrose, and the yield and quality of sugar beet, and the soil urease activity by adopting ‘HI003’ as experimental material. The results showed that: the chlorophyll content of slow release fertilizer treatment was 12.22% higher than that of common fertilizer on August 5 and 9.72% higher than that of common fertilizer on September 5, respectively; in the early growth stage, the dry weight of slow-release fertilizer treatment was lower than that of common fertilizer, however, the dry weight of slow-release fertilizer treatment was higher than that of common fertilizer in the later growth stage; the effects of slow release fertilizer and common fertilizer on the sucrose content in leaves and roots of sugar beet was not significant; the slow release fertilizer decreased soil urease activity in sugar beet growing stage; compared with common fertilizer, the slow-release fertilizer treatment increased the yield of root and sugar content; among the three treatments, 1:1 proportion of slow-release fertilizer and common fertilizer got the best performance and its sugar yield was higher than others. The experiment shows that the slow-release fertilizer contributes to the yield of sugar beet, so it is necessary to screen suitable slow-release, attempt to decrease fertilizer rate and reduce the environmental pollution caused by fertilizer.

CLC Number:

S566.3

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