How to fertilize radish?

Radish is a crop that requires a lot of fertilizer and absorbs a lot of nitrogen, phosphorus and potassium. Through scientific fertilization, we can ensure that radish has the nutrients it needs for growth, thereby increasing yield. So how do you fertilize radishes? Let’s take a look with the editor below.

1. Application of basal fertilizer

1. Fertilizer selection

Radish is a semi-cold-resistant vegetable . The suitable temperature for its growth is 5-25℃, and the optimum temperature for the expansion of its fleshy roots is 20℃. Radish is suitable for sandy loam that is rich in organic matter, has good drainage and a deep soil layer, and can adapt to a wide range of soil pH. Therefore, the base fertilizer should be mainly organic fertilizer , such as decomposed manure, compost, chicken manure, etc. These fertilizers are rich in organic matter and a variety of trace elements, which can improve soil structure and increase soil fertility. At the same time, appropriate amounts of chemical fertilizers, such as superphosphate, potassium sulfate, etc., should be applied to supplement nutrients such as nitrogen, phosphorus, and potassium in the soil.

2. Fertilization method

Before sowing radishes, the base fertilizer should be evenly spread on the field, and then deep plowing and careful cultivation should be carried out to fully mix the fertilizer with the soil. The amount of basal fertilizer applied should be adjusted according to soil fertility and target yield. Generally speaking, 2500-3500 kg of decomposed manure, 50 kg of wood ash and 2530 kg of superphosphate can be applied as base fertilizer per mu.

2. Topdressing

1. Seedling stage

When the radish grows two true leaves, apply the first top dressing. At this time, nitrogen fertilizer should be used mainly, such as urea or dilute human feces and urine, to promote the growth of radish leaves and the development of the root system. 10-15 kg of urea or 1000-1500 kg of dilute human manure can be applied per mu.

2. Rosette stage

When radish enters the rosette stage, the demand for nutrients increases significantly. At this time, nitrogen fertilizer and potassium fertilizer should be applied to promote the synchronous growth of radish leaves and roots. 1113 kg of urea and 89 kg of potassium sulfate can be applied per mu.

3. Fleshy root expansion period

The fleshy root expansion period is the critical period of radish growth. At this time, potassium fertilizer should be applied to promote the expansion and fullness of the fleshy roots. 1520 kg of potassium sulfate or 100-150 kg of potassium fertilizer such as wood ash can be applied per mu. At the same time, nutrients can be supplemented by foliar spraying, such as 0.3% calcium nitrate, 0.2% boric acid and 0.2% potassium dihydrogen phosphate, to increase the yield and quality of radish.

The above is an introduction to how to fertilize radishes. During the growth process of radishes, trace elements such as manganese, zinc, boron, molybdenum, etc. should be added in time according to the soil test results and the growth conditions of radishes to meet the radishes' needs for trace elements.