Suitable light for pistachio seedlings
Pistachio trees need sunlight and must be nourished by sunlight for 6 hours during the day. The pistachio tree likes direct sunlight, low shade and dry heat more than humidity. When planting seedlings, it is always recommended to plant the seedlings in the soil with a proper distance from each other. The proper distance for planting seedlings is 3 meters by 3 meters. The reason for the importance of proper distance between seedlings is that when the seedlings grow, if they do not get enough light, the tree will not grow well and as a result, the final product will be of poor quality. The effect of light on the growth of seedlings is so important that if it is not enough, some branches may dry up. Even the right light is useful to eliminate some pests of pistachio seedlings. If you don't provide enough light for the trees, you may have to cut down additional trees in the future.
The appropriate temperature to keep the pistachio seedlings
How to take care of pistachio seedlings against different temperatures is a very important point. The pistachio tree grows well in areas with hot summers and cold winters. The pistachio tree can tolerate very low air humidity and low soil moisture level. High humidity has a negative effect on tree growth. A low temperature of -10 degrees Celsius has a bad effect on the tree and damages its roots. Dry winds and cold moist air reduce the formation of pistachio seeds. Even frequent rainfall and wet weather during summer (before or during harvest) lowers the quality of crops. According to research, humid weather during the growing season of trees causes fungal diseases. Cold winters are needed for pistachio seedlings. Because it causes male and female pistachio trees to bloom almost simultaneously. The lack of winter cold causes a major problem for pollination.
How to properly irrigate pistachio seedlings
Although the pistachio tree is drought-resistant, it needs irrigation and if sufficient and appropriate water reaches its roots, better quality products are produced. If too much water reaches the roots of the tree, it will cause the products inside the clusters (pistachio seeds) to open (crushed condition) and a poor quality product will be harvested. In Iran, drip irrigation is a suitable choice due to the water scarcity crisis. According to research, with drip irrigation, water consumption can be saved by about 50%. It is better not to use traditional irrigation. The disadvantages of traditional irrigation of pistachio trees are more than their advantages. One of its very important disadvantages is the increase in the amount of weeds in the garden, which may be problematic in the process of tree growth. Also, the amount of water required by pistachio trees varies according to their age. The younger the pistachio tree, the more water it needs.
Soil suitable for pistachio seedlings
Choosing the right soil is one of the important items in the topic of how to care for pistachio seedlings. Pistachio seedlings can adapt to different types of soil, but loamy, sandy and dry soils are more suitable. The pistachio tree does not tolerate wet soil in any way and does not grow well there. Before planting pistachio seedlings, you must plow the soil to a depth of 50-70 cm. The purpose of plowing the soil is to destroy the weeds so that the roots can grow well. Before planting pistachios, professional gardeners send a soil sample to the laboratory to measure the amount of nutrients in the soil. Measuring the amount of nutrients allows gardeners to estimate the amount of fertilizer needed for the soil. Also, soil salinity should be less than 8 decisiemens/meter. If the garden soil has too much salinity, you should remove the surface layer of the soil. Because the surface layer of the soil is the saltiest part of the soil.
