How to fertilize red-fleshed kiwifruit for high yields?
The market for red-fleshed kiwifruit is growing larger and larger now, and many friends have been drawn in by its profits and have started planting it on a large scale. The final yield of kiwifruit determines the farmers' ultimate economic returns. So many friends want to achieve high yields and large quantities of fruit, but they don't know how to do it. In fact, yield has a great deal to do with fertilization. As long as fertilizer management is done well, achieving high yields is not very difficult. Now let's take a look together with the editor at the high-yield fertilization techniques for red-fleshed kiwifruit!
1. Bud-promoting fertilizer
Bud-promoting fertilizer is essential. Bud-promoting fertilizer can generally be applied as a top dressing in early spring, once the spring temperatures rise, the soil thaws and softens, and the sap in the tree begins to flow and activity starts. Then you can begin applying the bud-promoting fertilizer, because spring is the season when all things revive, and after enduring the winter season of nutrient shortage, the tree certainly needs a large amount of nutrients to replenish its supplies. Applying bud-promoting fertilizer at this time is ideal: it not only replenishes enough nutrients for the tree, but also promotes budding and flowering. Bud-promoting fertilizer is mainly composed of quick-acting nitrogen fertilizer with a small amount of phosphorus and potassium fertilizer.
2. Fruit-promoting fertilizer
Fruit-promoting fertilizer is mainly for promoting fruit growth and enlargement. About one month after fruit set and petal fall comes the most critical period for kiwifruit——the rapid fruit enlargement stage. The enlargement stage is especially important for kiwifruit, because at this stage the fruit grows at its fastest rate, growth speeds up, and volume increases rapidly. If fertilizer is lacking at this time, enlargement will be hindered. The fruit cannot enlarge, and the final harvest will be seriously affected in quality and commercial value, so the top dressing of fruit-promoting fertilizer must be ensured, mainly with quick-acting compound fertilizer, followed by watering the whole orchard after application.
3. Fruit-strengthening fertilizer
Fruit-strengthening fertilizer is applied as a top dressing in midsummer. It is best to apply an appropriate amount of phosphorus and potassium fertilizer to each tree around June, in order to make up for the nutrient deficiency in the later stage that affects the growth of branches and shoots. Alternatively, quick-acting nitrogen fertilizer can be sprayed on the leaves once or twice. During this period, spraying calcium fertilizer can also improve the storage time of the fruit after harvest; it is mainly foliar fertilizer spraying that is used. Foliar fertilizer has a great influence on the final harvest, because at this stage the branches and shoots lack nutrients, which affects growth and development and also causes certain harm to the fruit.
4. Wintering fertilizer
Wintering fertilizer is the base fertilizer. After the winter harvest is complete, cultivate and earth up the soil, disinfect the orchard, clear away diseased and damaged branches, and apply the base fertilizer. It is mainly to prevent pathogens, insect eggs and other pests from attaching to them and overwintering. Wintering fertilizer is mainly fully decomposed farmyard manure, which can be mixed with an appropriate amount of fertilizers such as calcium phosphate. After the base fertilizer is applied, let it ferment and generate high temperatures to kill pathogens and insect eggs in the orchard, preparing for the next year's sprouting and preventing pathogens from harming the tree in early spring.
The above four fertilizers are the most important fertilizers for red-fleshed kiwifruit during the four stages of cultivation. The most important are still the fruit-promoting fertilizer and the wintering fertilizer. The fruit-promoting fertilizer is the best boost for promoting fruit enlargement, and successful fruit enlargement is extremely beneficial to later growth. It can also greatly improve the final quality. The wintering fertilizer prepares for the second year, reducing the incidence of disease and improving the survival rate of the fruit trees. I hope this article can be of some help to everyone.