This book helps farmers to understand the results from their soil test.

The sufficient range of plant nutrition elements is the range amount which is able to meet the necessary growth and development needs. The width of this range is decided by different plant species and particular nutrition elements. Either overdose or deficiency would hinder the growth of the plant. Therefore it is important to keep the nutrition amount in a proper range in order to achieve maximum growth.

You could find more information here: https://drive.google.com/file/d/1DK5IkwxMVwgpU2iV6jVZmwCvkxxWy-eC/view?usp=sharing

This brochure provides an overview into the common nutrition deficiency (which is more common in St. Kitts and Nevis) symptoms and their management skills.

Nitrogen is necessary for plant growth, however, excess Nitrogen would decrease the flower number and lead to over-vegetative growth. The plants are more likely to be attacked by pests and diseases.

According to the map, most of the farmlands have enough Nitrogen content already, so don't put too much Nitrogen into the soil. The Nitrogen fertilizer could be used as basal fertilizer and dressing, application should be control in a small amount each time and do not apply it after plant start flowering.

Phosphorous is essential in cell division and growth of new tissues. It's especially important in legume crops (beans) as they play a vital role in Nitrogen fixation in their roots.

The Phosphorous fertilizer should be applied into the field as basal fertilizer to ensure good uptake.

Potassium, also known as "Element of Quality", it is related with nutrition transportation to storage organs. Thus the quality of all kinds of melons, tuber crops and peppers are significantly affected if there is a shortage in Potassium.

Apply Potassium as basal fertilizer and during flowering and early fruit development.

Each crop has their own suitable soil pH range, if the soil pH is out of proper range it would cause physiological disorders to plants. Soil pH also affects nutrient availability in the soil, for example: Nitrogen, Phosphorous, Potassium and Calcium availability is lower in acidic soil.

Continuous using chemical fertilizer would make the soil more and more acidic, it's necessary to adjust the soil pH time by time in order to keep good yield. Apply lime or plant ashes could increase the soil pH; Compost and Manure is also and good choice; or just let the land rest for 1~2 season.

Organic Matter have a strong link with soil fertility, in general, the higher the organic matter, the higher the soil fertility. Soil organic matter can improve soil texture, retain moisture, reduce compaction and act as pH buffer.

St. Kitts and Nevis farmlands generally have good organic matter content, to keep it, Compost and Manure are good organic fertilizer choices which can increase soil organic matter content.

Combine the data above, we could label some less suitable planting zones on the map. Please noted these areas are still able to grow crops, but they would need further care to soil condition and fertilization.