2. What nutrient soil is used for raising seedlings?

3. Is the nursery soil nutritious?

4. How to prepare nursery nutrient soil?

1. Excellent soil for seedling raising is the basis for successful seedling raising. To ensure the demand for mineral nutrition, water and air in watermelon seedling stage, it must have the following advantages: good water holding capacity and permeability, which mainly refers to the physical characteristics of soil at seedling stage.

2. The total porosity of seedling soil is not less than 60%, of which the macroporosity is about 20%.

3. The surface is dry, does not crack, does not harden after watering, and has strong fertilizer and water retention.

4. it is not easy to disperse, and the seedling soil should be glued well. When transplanting seedlings, it is not advisable to spread them. Scattered garbage will damage the root system of watermelon, resulting in slow growth of seedlings, which is suitable for infectious diseases and even death.

5. It is rich in all kinds of mineral nutrients needed by seedlings, and the mineral nutrients in the soil of seedlings are sufficient and comprehensive, especially the available nutrients needed by watermelons, which is the key to cultivate strong seedlings.

6. If the nutrients are insufficient, the nutrient solution should be poured during the seedling raising process.

7. It has an appropriate pH value and does not contain harmful chemicals such as herbicides.

8. No harmful bacteria and pests. If the soil containing harmful bacteria, especially soil-borne diseases, will make the seedlings vulnerable to diseases, leading to a large-scale outbreak of diseases after watermelon planting, which is more destructive than the diseases in the mature stage.

9. When choosing soil, it is better to choose peat soil, mountain bark soil or field soil to avoid using plots where melon crops will be planted within 5 years.