| Country / location | China / Guangxi province, southern China |
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| Objectives | Find the major limiting factor for rice production among the following: micronutrients, growth substances, & potassium. Multi-K, MKP |
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| Haifa product tested | Multi-K |
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| Application method | Foliar nutrition |
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| Tested treatment | 2 x Foliar feeding @ 4% Multi-K & 600 lit./Ha |
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| Control treatment results | Yield = 4529 Kg/Ha |
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| Best treatment results | Yield = 5241 Kg/Ha |
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| Characteristics of best treatment | Yield increase: 712 Kg/Ha (15.8% above control)
Grower’s revenue from yield: 157 US$/MT
Cost of treatment (application + material) 22 US$/Ha |
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| Net benefit of best treatment | 112 US$/Ha |
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| Benefit/Cost ratio | 5.1 |
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| Conclusions | Local: Potassium was found to be the major limiting factor for good yields, under the prevailing conditions. |
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| Reference | S. Peng & S&F Institute, Guangxi AAS |
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