The improvement of fruit quality is an urgent problem to be solved in production. In particular, since the nectarine breeding in China started late, there is still a certain gap between the breeding level and foreign countries. Therefore, in addition to careful selection of varieties, efforts should be made to improve quality in cultivation. .
First, a reasonable choice of species
In the northwest region, varieties with different ripening dates are selected, such as Shuguang, Huaguang, Yanguang, Ruiguang No. 5 and Ruiguang No. 18. Since the introduction of new varieties of nectarines in China is fast, we must always grasp new information and dynamics.
Second, increase the planting density and change the shaping method
One of the main characteristics of nectarine is the bright appearance of the fruit, but if the density is large and the light is poor, the fruit color is not ideal enough to affect the fruit quality. Increase the density mainly from the beginning of the increase in line spacing, the line spacing increased to 5 to 6 meters, the plasticity of the two main branches.
Third, a reasonable load
Nectarines are genetically less common than regular peaches, which means that the chance of choosing a large nectarine is less than that of peaches. Therefore, compared with peach, it is more reasonable to load, strictly control the output, increase the weight and quality of the fruit. Thinning, thinning, or even sparse buds are effective ways to achieve a reasonable load.
Fourth, to strengthen soil fertilizer management, improve fertilizer and water supply
Applying more organic fertilizer can improve the quality. The fruit to which the organic fertilizer is applied has a brighter color, richer flavor, and 2 to 5% more soluble solids than the chemical fertilizer.
V. Strengthen pest control and reduce losses
Nectarines are prone to pests and diseases, and nectarine varieties such as scab, stink bug, beetle and other pests are more serious than peaches, and bird pests are even more serious. Therefore, comprehensive pest control should be strengthened.
Sixth, bagging cultivation
Bagging cultivation can avoid cracking fruits and pests, but also can make fruit surface evenly colored and improve fruit quality. Paper bags are best produced with specially produced white and yellow bags. Recent tests have shown that blue, red and black can make the fruit color more uniform.
Seven, timely harvest
Nectarine varieties are colored early, and fruit growers often use this feature to harvest 5 to 7 days earlier and seize the market. At this time, it was during the rapid development of fruit quality that excessive harvesting resulted in the original size and flavor of the variety. The optimum harvesting maturity of nectarine is 85 to 9 years, and the size, color, and flavor of the variety can be fully reflected. Therefore, it is the best harvesting period at this time.
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