How to Grow Bitter Melon? A Detailed Guide to the Key Points of Bitter Melon Cultivation Techniques

Bitter melon cultivation includes site selection and land preparation, timely sowing, reasonable close planting, fertilizer and water management, and pest and disease control. Among these, fertilizer and water require integrated water-fertilizer management, adjusted according to growth. Let's take a detailed look below.

What are the key points of bitter melon cultivation techniques?

1. Site selection and land preparation

Bitter melon is not strict about soil requirements and can be grown in all kinds of soil. However, its root system is relatively developed, with many lateral roots and a wide root mass; it tolerates fertilizer but not barren soil, and likes moisture but hates waterlogging. Therefore, it is best to choose land close to a water source, with deep, loose, well-drained soil. Before planting, the land must be plowed, sun-bleached, composted, and raked fine, so that it achieves depth, looseness, fertility, fineness, and evenness, laying the foundation for a high yield.

2. Timely sowing

Bitter melon seeds are generally sown in spring, but the specific sowing time depends on the local geographical and climatic conditions. For example, in the Guangzhou area sowing can be done in early January, while in the Beijing area you need to wait until late March to early April. In addition, the planting period for autumn-planted bitter melon is generally July-August, and the planting period for winter-planted bitter melon is November-December.

3. Reasonable close planting

If cultivating in the open field, first raise seedlings in a greenhouse. Sow the treated bitter melon seeds on a previously prepared seedling bed, water thoroughly, cover with fine soil, and after 28-35 days of seedling age they can be transplanted. The planting density per mu is about 1300-600 plants, with spacing of about 60 cm, and base fertilizer must be applied before planting. In addition, after planting, an A-frame trellis should be set up as soon as possible to accommodate its growth.

4. Fertilizer and water management

Bitter melon fertilization and watering should be managed with integrated water-fertilizer management, and fertilization should follow the principle of “light application at the seedling stage, heavy application at the flowering and fruiting stage,” so as to ensure the normal growth and development of vines and leaves while also meeting the nutrient needs of its continuous flowering and fruiting. Then make corresponding adjustments according to the actual situation of seedling condition, weather, and planting conditions, and also choose different fertilizers for different stages of bitter melon when fertilizing; fertilization must not be single.

5. Pest and disease control

Choosing disease-resistant varieties, disinfecting seeds before planting, and reasonable fertilization are all means of preventing pests and diseases. For common pests and diseases such as damping-off, anthracnose, powdery mildew, melon aphid, thrips, and whitefly, spray pesticides in advance for control.

In addition to the above points, setting up a trellis and timely vine guiding are also effective means of improving yield and quality. Growers must not forget this.