A STUDY ON MINERAL NUTRIENT AND FERTILIZER PRACTICE FOR HIGH-YIELD OF "PENG GANG" CITRUS

The paper disscussed the mineral nutrient and fertilizer practice for high-yield of Peng-Gang citrus, and revealed the nutrient level of high and low-yield, annual nutrient variation, correlation ship between foliage mineral nutrient and biological characteristies, and the balance characteristes of mineral nutrient physiology .Nutrient indices which were demonstrated in large scale area for high and low-yield are proposed. According to the response of fliage mineral nutrient and fertilizertest, the fertilizer requirement and the formula for high-yield of "Peng-Gang" citrus, and "W" applying pattern were proposed.