Physiological fruiting peach trees, the first drop is mostly poor pollination fertilization, after the fall is because the tree reserves nutrients have been exhausted, while the lack of new hair, in a young state, lack of photosynthetic products, organic nutrition, for Not on the demand for young fruit development, resulting in a large number of fruit drop.
There are many reasons for peach fruit drop. The daytime temperature is higher than 33°C, and the nighttime temperature is lower than 10°C; the trees are left with too much light; the adjacent fruits collide with each other; the water and fertilizer management is disordered, and the growth of new shoots is taken away. The fruit needed for fruit growth can cause fruit drop. The effective measures to prevent peach fruit falling are:
First, from high ridges, mulching film to planting peach trees from the high ridge, the spring cover film can significantly increase soil moisture, promote peach early root new roots, improve root activity and absorption capacity, reduce fruit drop significantly.
Second, fertilizer and water management Base fertilizer in the spring should not be too late, to avoid a large number of individual nitrogen fertilizer, should be combined with phosphorus, potash fertilizer application; and should focus on the supply of fertilizer before the hard core amount of water, hard core should not start pouring water.
Third, the expansion of spraying pesticides to improve the low temperature performance, promote hair roots, can effectively reduce the occurrence of fruit drop.
Fourth, science pruning can not be too heavy pruning Mong Chang peach, reasonable sparse canopy, sparsely dense branches, timely control of cutting branches in summer, improve the ventilation and light conditions of the crown, increase lighting, increase blade assimilation, appropriate early Shrubs to regulate nutrient distribution.
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