Yield increase follows foliar spray with Multi-K indicates that Potassium is one of the major limiting factor for higher crop productivity
|
Crop/cultivar |
Rice/ Quality hybrid |
|---|---|
| Country / location | China / Guangxi province, southern China |
| Objectives | Find the major limiting factor for rice production among the following: micronutrients, growth substances, & potassium. Multi-K, MKP |
| Haifa product tested | Multi-K |
| Application method | Foliar nutrition |
| Tested treatment | 2 x Foliar feeding @ 4% Multi-K & 600 lit./Ha |
| Control treatment results | Yield = 4529 Kg/Ha |
| Best treatment results | Yield = 5241 Kg/Ha |
| 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 |
| Net benefit of best treatment | 112 US$/Ha |
| Benefit/Cost ratio | 5.1 |
| Conclusions | Local: Potassium was found to be the major limiting factor for good yields, under the prevailing conditions. |
| Reference | S. Peng & S&F Institute, Guangxi AAS |
