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Spatial Distribution and Effect of Available Zinc in Soil in Yizheng
Author(s): 
Pages: 6-9
Year: Issue:  2
Journal: Reclaiming and Rice Cultivation

Keyword:  Zinc fertilizerRiceYieldOptimum amount;
Abstract: The general survey of available zinc were made in Yizheng in 2012, the result indicated that content of available zinc was from 0.35 mg/kg-8.31 mg/kg(averaged about 1.04 mg/kg) and it was medium level. The test indicated that zinc can increase yield which the highest increase being 15% under medium level of available zinc in soil, the reason of increase yield was that zinc can promote tillering and increase the effective panicles, the optimum amount was 1.2 kg/667 m2, in this scope, incremental range can increased with the increase of zinc, beyond the range, the incremental range would decline.
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