Development Status of Orchard Irrigation and Introduction of Commonly Used Water-Saving Irrigation Technology

Irrigation is the key point of orchard maintenance. Fruit trees in the north are prone to drought when there is insufficient precipitation in early spring. Fruit trees are in a period of vigorous growth and must have sufficient water sources. Therefore, adopting spring irrigation and moisture conservation farming techniques to prevent spring drought is the key to increasing yield. There are many orchards in the mountains in the south, and the irrigation conditions are limited, and droughts are prone to occur in summer. Therefore, the adoption of irrigation and water-storage cultivation is an important measure to ensure high yield and high quality. 2. The orchard hole storage fertilizer and water plus plastic film covering technology. This technology has low application cost, is easy to operate, can improve soil, and can increase yield and increase fruit. Currently, it has been promoted in Shandong, Hebei, Shanxi, Liaoning, Shaanxi and other places for millions of hectares, which can increase yield by about 20-30%. 3. The orchard infiltration irrigation, drip irrigation, sprinkler irrigation and other technologies have been gradually promoted, and the yield has been significantly increased. Among them, the efficient and practical infiltration irrigation technology can save water as high as 60%-80%. Brief introduction of several common water-saving irrigation techniques: 1. Wide hole fertilizer storage technology: After the soil is thawed in spring, 4-8 circular soil holes are dug under the tree canopy. The hole diameter is about 30 cm and the depth is 30-40 cm. Grass handle, and then use 50 grams of urea, 50-100 grams of superphosphate, 50-100 grams of potassium chloride, mix with soil, fill around the grass handle, cover soil for 1 cm, then cover with mulch, and poke a hole with As an import for future watering and fertilization, the orifice is usually covered with clods. 2. In

Precautions for the use and maintenance of drip irrigation belts

Precautions for the use and maintenance of drip irrigation belts 1. The pipes and drippers of drip irrigation are easy to block and have high water quality requirements, so it is necessary to install filters; 2. Drip irrigation cannot adjust the microclimate of the field, and is not suitable for irrigation during the freezing period, and the drip irrigation system cannot be used in vegetable irrigation. . 3. The investment in drip irrigation is high, and the economic benefits of crops should be considered; 4. Pay attention to pressing and compacting the film when laying the drip irrigation belt, so that the film is as close to the drip irrigation belt as possible, and there should be no space between the film and the drip irrigation belt. Avoid the sunlight passing through the condensation formed by the water droplets. Before planting, the land should be leveled to reduce the phenomenon of many pits and depressions in the land. Prevent clods, rocks and weeds from holding up the mulch, causing water vapor to accumulate under the mulch to form a lens effect and burn the drip irrigation belt. When laying, the drip irrigation tape can be buried to avoid focus burns. The correct use of the patch drip irrigation tape is as follows: 1. SMD drip irrigation tape should pay attention to the water pressure. The pressure should be moderate to avoid rupture of the soft tape of the patch drip irrigation tape. 2. The proportion of fertilizer nutrients is suitable. 3. Prevent patch drip irrigation tap