Detailed Explanation of Fertilizer and Water Management Techniques for Navel Orange
Navel orange is a very popular fruit in China, with a large planting area. The economic value of navel orange is very high, so more and more people are growing navel oranges. When growing navel oranges, we should focus on doing a good job in fertilizer and water management. Ensuring sufficient nutrients and water is the key to the normal growth of navel oranges. So how should fertilizer and water be managed when growing navel oranges? Below, the editor brings you the fertilizer and water management techniques for navel oranges. Let's take a look together!
1. Fertilization during the young tree stage
During the young tree stage of navel orange, attention should be paid to mainly expanding the canopy and strengthening tree vigor. When fertilizing, the principle of small amounts and frequent applications should be followed, with about 8 fertilizations per year. The fertilizer should be mainly nitrogen fertilizer, supplemented by phosphorus and potassium fertilizers. About half a month before the spring and summer shoots sprout on young trees, apply decomposed organic fertilizer or compound fertilizer. Then after each pruning of new shoots, apply a shoot-strengthening fertilizer once, mainly compound fertilizer. As the tree age continues to increase, the amount of fertilization should be appropriately increased, and foliar topdressing should also be used in coordination. Stop applying nitrogen fertilizer after the Mid-Autumn Festival. Control the ratio of nitrogen, phosphorus and potassium well. For young trees that will bear fruit the following year, appropriately increase the application amount of phosphorus and potassium fertilizers.
2. Fertilization for trees at the initial fruiting stage
During the initial fruiting stage of navel orange, it is necessary both to continue expanding the canopy and to ensure its yield. The fruiting mother branches of navel orange should be mainly early autumn shoots, so fertilization should also focus on this. Fertilize about 3 times per year, generally starting fertilization in February, and applying an appropriate amount of urea and compound fertilizer is sufficient. Then in mid-to-late June, apply fruit-strengthening fertilizer, and the fertilizer amount should remain at half of the annual fertilization amount. Mainly use decomposed organic fertilizer, then in September-October, apply base fertilizer and post-harvest fertilizer, carried out together with the work of expanding holes and improving soil. Similarly, the fertilization amount should also be increased according to the increase in tree age.
3. Fertilization during the full fruiting stage
After navel orange enters the full fruiting stage, the fruiting mother branches are generally mainly spring shoots. At this time, the tree's vegetative growth and reproductive growth are in a balanced state. Therefore, fertilization should focus on spring bud fertilizer and fruit-strengthening fertilizer, while also paying attention to the application of post-harvest fertilizer and supplementing an appropriate amount of trace elements. Among these, special attention should be paid to the application of fruit-strengthening fertilizer, with the fertilizer amount reaching half of the annual fertilization amount. Then, as with trees at the initial fruiting stage, apply base fertilizer in September together with expanding holes and improving soil, mainly applying winter fertilizer in autumn. Fertilizers such as green manure, lime and phosphate fertilizer can be used.
4. Watering management
Water is very important for the growth of navel orange. When growing navel orange, we must pay attention to doing a good job in watering. If the soil is too dry, then water in time to meet the water demand of navel orange. But also pay attention to controlling the amount of watering, which must not be too much. If too much water is applied or during the rainy season, then accumulated water should be drained. The watering method is best based on sprinkler irrigation, drip irrigation, etc. One month before fruit harvest, watering should be stopped. However, within one week after harvest, water once in time.
The above is a brief introduction to the fertilizer and water management techniques for navel orange. That is all for today's introduction. This article is for reference only and I hope it can help everyone!