The pomelo root system has a preference for new soil, which plays a crucial role in maintaining healthy growth. By adding soil, the soil layer can be thickened, preventing roots from being exposed due to erosion. In summer and autumn, the added soil helps retain moisture and provides cooling, while in winter, it offers insulation against cold temperatures. In particular, some mature mountain orchards suffer from severe soil erosion, leading to shallow soils, exposed roots, and aged, degraded land. Deep plowing to improve the soil may negatively impact tree growth because of its slow rooting process. Therefore, soil cultivation is an effective and practical method for managing orchard soil.
Orchard soil cultivation should be carried out once a year or every other year, ideally between May and June or August and September. It can also be done after fruit harvesting. The recommended soil depth for application is 10–15 cm. Locally available soil is preferable, especially the same type found in the orchard. However, suitable soil types can be selected for improvement—such as mixing sandy soil with clay or clay with sand. Additionally, river mud or pond soil, which are more fertile, should be considered. Soil cultivation should be combined with fertilization: before applying soil, basic fertilizer and lime should be spread to enhance soil quality. Plowing first and then adding soil increases the soil layer thickness and improves fertility, resulting in optimal outcomes.
In large orchards, sourcing quality soil can be difficult and costly. However, when building a mountain orchard, grass-covered mounds on the back of terraces can be used as a source for soil cultivation. This method is both economical and convenient, making it a practical choice for long-term soil management.
Insect net greenhouse also known as plant and vegetables greenhouse net. Used for prevent the insect fly into the greenhouse during the plant growing, and cover the plants. Key off the approaches that the pests (adult insect) breeding. Effective control of the spread of all kinds of harmful pests spread, such as Cabbage caterpillar, diamondback moth, aphids, flea beetles, Sweet agnates, American leaf miner, literal etc and prevent the harmful of virus spread. Significantly reduced the use of chemical pesticides, so that the planting vegetables good-quality and health.
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