Indica Hybrid Rice Recommended Fertilization Parameter Based on Nutrient Balance Method in Guizhou

To obtain Guizhou recommended indica hybrid rice fertilization parameters and form the localized,precise fertilization technology system of rice with high quality and high yield,3414 fertilizer effect and nutrient test values of plant and soil of each fertilization zoning in Guizhou recently were analyzed,then fertilization parameters such as nutrient uptake,soil nutrient supply and fertilizer utilization rate of rice in different fertilization zoning were established.Based on the nutrient balance method,soil fertilizer consumption and rice fertilizer requirement were determined,and the designed fertilizer formula was used,so that the average alignment between actual yield and setting target yield of prescript fertilization zoning was 93.89%.The determing of recommend fertilization parameters which is helpful to improve the imperfect fertilization technology system of rice,provides some basis for rice prenatal fertilizer and fertilizer formula design,and increases the reliability of the recommend fertilization technology solutions.