Application methods of potassium sulfate compound fertilizer on crops
How is potassium sulfate compound fertilizer applied to crops? Please give an introduction. The following introduces the methods of applying potassium sulfate compound fertilizer to several crops: Cucumber: generally, for a high-yield cucumber field, apply 5000 kg of high-quality organic fertilizer and 50 kg of potassium sulfate compound fertilizer per mu as base fertilizer. The principle for topdressing is small amounts applied multiple times, with a total topdressing amount of about 50 kg. Topdressing should be applied by flushing with water, once every half a month, with urea and potassium sulfate compound fertilizer used alternately, 10-15 kg per mu each time.
How is potassium sulfate compound fertilizer applied to crops? Please give an introduction.
The following introduces the methods of applying potassium sulfate compound fertilizer to several crops:
Cucumber: generally, for a high-yield cucumber field, apply 5000 kg of high-quality organic fertilizer and 50 kg of potassium sulfate compound fertilizer per mu as base fertilizer. The principle for topdressing is small amounts applied multiple times, with a total topdressing amount of about 50 kg. Topdressing should be applied by flushing with water, once every half a month, with urea and potassium sulfate compound fertilizer used alternately, 10-15 kg per mu each time.
Welsh onion: before planting, prepare the land and apply 5000 kg of organic fertilizer and 30-40 kg of potassium sulfate compound fertilizer per mu. After the Beginning of Autumn, apply 1 topdressing of leaf-promoting fertilizer, with 25-30 kg of potassium sulfate compound fertilizer per mu; after the End of Heat, apply 20-30 kg of potassium sulfate compound fertilizer; from White Dew to the Autumn Equinox, apply 10-15 kg of potassium sulfate compound fertilizer and 5 kg of urea.
Onion: in combination with plowing and land preparation, apply 2000-3000 kg of high-quality decomposed farmyard manure and 40-50 kg of potassium sulfate compound fertilizer per mu. After the beginning of spring, when the plants enter the period of vigorous growth, topdressing can be applied 1-2 times, generally with 15-20 kg of potassium sulfate compound fertilizer per mu. When the small bulbs enlarge to about 3 cm, topdressing should be applied in time, with 700-1000 kg of decomposed manure or 10-15 kg of potassium sulfate compound fertilizer per mu. When the bulbs continue to grow to 4-5 cm, apply chemical fertilizer once more, with 15-20 kg of potassium sulfate compound fertilizer per mu.
Chili pepper: in combination with land preparation, apply 5000 kg of fully decomposed high-quality farmyard manure and 40-50 kg of potassium sulfate compound fertilizer per mu. The first topdressing is after the plants survive, with 8-10 kg of urea per mu. The second is when the plants are budding, with 10-15 kg of potassium sulfate compound fertilizer per mu. The third topdressing is applied when the first cluster of fruits begins to swell, with 10-15 kg of potassium sulfate compound fertilizer per mu applied in furrows or holes, followed by watering. The fourth is applied during the peak fruiting period, in combination with watering, with 10-15 kg of potassium sulfate compound fertilizer per mu.
Chinese cabbage (cabbage): when plowing and preparing the land, apply 2500-3000 kg of fully decomposed organic fertilizer and 25 kg of potassium sulfate compound fertilizer per mu. Fertilize at the seedling stage, rosette stage, early heading stage, and mid-heading stage, with 25-30 kg of potassium sulfate compound fertilizer per mu for topdressing, among which heavy fertilization is carried out at the early heading stage, with the fertilization amount being 3 times that of other periods. Before the cabbage closes its rows, it can be applied in furrows; after the rows close, it can be flushed with water.
Strawberry: when preparing the land, apply 40-50 kg of potassium sulfate compound fertilizer and 10 kg of urea per mu as base fertilizer; after strawberries are planted, water with rooting water to ensure the field is moist, and apply 15-20 kg of potassium sulfate compound fertilizer to improve overwintering ability. The spring flowering and fruiting period is a moisture-sensitive period, and the soil should be kept moist. When irrigating, apply 10 kg of potassium sulfate compound fertilizer in combination, with topdressing 2-3 times.
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