What kind of growing environment does the macadamia nut (Australian nut) need?
The macadamia nut is also called the Australian nut, Queensland nut, and so on. It is a nut native to Australia and has rather high economic value. So, what kind of growing environment does the macadamia nut need? Let us take a look together!
1. Light
The macadamia nut has relatively high light requirements. Especially for trees that are bearing fruit, if the tree canopy has poor light penetration, it will not only lead to insufficient light but also affect pollination of the macadamia tree, causing fruit drop. The outer branches of the macadamia tree have a fruit-setting rate about one month after the flowers drop that is far higher than that of the inner canopy branches. Moreover, the fruiting branches of the macadamia nut are mainly perennial branches and spring shoots, and these fruiting branches are concentrated inside the canopy. As the tree grows, the fruiting branches gradually shift outward, leading to a reduction in the amount of fruit set inside the canopy. Therefore, the tree structure must be adjusted well to promote light absorption.
2. Temperature
Although the macadamia nut is a tropical tree species, the temperature should not be too high. If the temperature exceeds 33 degrees, it will have a certain impact on its yield. Different varieties also have different ranges of temperature adaptation, and different growth stages also have different temperature requirements. For most macadamia nut varieties, during flower bud differentiation, the temperature should be controlled at around 15-21 degrees, with the optimal temperature at 17-19 degrees, while during fruit setting the temperature should be controlled at around 20-30 degrees. Otherwise, fruit drop of varying degrees will occur, and in severe cases it will affect yield and reduce planting benefits.
3. Water
Water is also very important for the growth of the macadamia nut. Before flowering, the soil should be kept moist. Its water content has a great relationship with the size, quality, and kernel outturn rate of the macadamia nut. If there is a lack of water, after the leaf moisture evaporates, water shortage will appear, while young leaves will wilt and droop, old leaves will lose their luster, and in severe cases leaves will fall, causing the photosynthesis of the macadamia nut to decline and the accumulation of photosynthetic substances to be seriously insufficient. However, water should not be excessive either. In the rainy season or if too much water is applied, drainage should be carried out in time to prevent waterlogging damage.
4. Wind
The macadamia nut has relatively poor wind resistance. The macadamia tree will not only be bent by strong winds, but its flower and fruit quantity and fruit development will also be affected. Especially during the young fruit stage, its flower stalks and fruit stalks are very fragile, and even a slightly stronger wind can break them, causing flower and fruit drop. Second, wind is also a main cause of macadamia nut fruit drop. Therefore, when choosing a planting plot, everyone should try to choose an area with little wind. If the wind volume is large and frequent, then a good windbreak forest should be established around it.
The above is an introduction to the growing environment of the macadamia nut. Is your area suitable for growing macadamia nuts?