Soil Fertility Management for Broccoli

Prior to field preparation, have soil tested to establish baseline pH and nutrient levels. Manage nutrients according to soil test results, soil types, and region-specific guidelines presented in Table 1, below. Note the following general considerations:

Maintain a pH of 6.5. In regions where clubroot is a concern, apply lime to rasie pH into the range of 6.8 – 7.2.

Boron can be applied as an additive to fertilizer. See table for the recommended amount for your area.

Fertilizer inputs are generally split into multiple applications timed to critical stages in plant growth. Base inputs on soil test results, and do not exceed total recommended amounts for your region. Include nitrogen credits in total inputs.

Abnormalities can result from overfertilizing as well as from nutrient deficiencies. For example, hollow stem can result from too little boron or too much nitrogen.