Celery soil testing and fertilization technology

Celery is one of the most common green vegetables, rich in a variety of nutrients. In celery planting process, fertilization is an important work, celery fertilization methods and ways there are many. Today to tell us about celery soil testing and fertilizer technology.

celery

To be celery nutrient growth peak nutrient uptake, the period of nitrogen, phosphorus, potassium, magnesium, calcium absorption of five elements accounted for more than 84% of the total absorption. Celery need nitrogen highest, followed by calcium and potassium, phosphorus, magnesium at least. Celery is also a great demand for boron in the boron-deficient soil or due to drought and low temperature inhibition of absorption, the petiole is prone to transverse rupture, that is, "stem folding disease," seriously affecting the yield and quality.

Fertilizer medium fertility level of celery throughout the growth of fertilizer per acre for the farmhouse 2500-3000 kg (or organic fertilizer 350-400 kg), nitrogen fertilizer 13-16 kg, phosphorus fertilizer 5-6 kg, potassium 6-9 kg, nitrogen , Potassium base fertilizer and three top dressing, fertilizer ratio 2: 3: 3: 2, all phosphate fertilizer for basal, fertilizer and manure (or commercial organic fertilizer) mixed application.

Basal fertilizer applied per mu farm 2500-3000 kg or 350-400 kg of organic fertilizer, urea 4-5 kg, 11-13 kg of diammonium phosphate, potassium 4-5 kg.

Celery soil testing and fertilization technology

Topdressing seedlings in the Huanmiao Mushi urea growth rate of 6-8 kg, 3-4 kg of potassium sulfate; vigorous growth of the early Mushi urea 8-11 kg, 3-5 kg ​​of potassium sulfate; vigorous growth of mid-term Mushi urea 6- 8 kg, 3-4 kg of potassium sulfate.

Root top dressing such as heart rot found available 0.3% -0.5% calcium nitrate or calcium foliage spray. Foliar application of boron fertilizer to a certain extent to avoid the occurrence of stem split, spraying 0.2% per acre borax or boric acid solution 40-75 kg. Facility cultivation can increase the carbon dioxide gas fertilizer.

Above is celery soil testing and fertilizer technology, planting celery friends can refer to the above method, combined with the actual planting situation, rational use of soil testing and fertilizer technology.