-
Detailed Explanation of Key Technical Points for Flower and Fruit Management of Apricot Trees
I. Artificial Pollination Apricot trees rely on bees and others for pollination. But experience shows that carrying out artificial supplementary pollination can increase the fruit-setting rate by 3-4 times compared with natural pollination. Artificial supplementary pollination should be carried out during full bloom, because the apricot flowering period is very short (5-7 days), so preparations should be made in advance. Apricot flower stalks are fragile and break easily, so extra care should be taken during pollination...
-
Post-harvest management of apricot trees must keep pace; these key points are essential
Symptoms Apricot brown rot has two symptom types. One affects nearly ripe fruit, initially forming dark brown, slightly sunken round lesions, which then rapidly expand, soften and rot, covered with yellowish-brown velvety granules, arranged in whorls or irregularly; affected fruit mostly drops early or rots, with a few hanging on the tree to form mummified fruit. The other affects fruit...
-
Winter Pruning Methods and Technical Key Points for Apricot Trees
Spring Management of Apricot Trees As the saying goes, "apricot trees fail nine years out of ten." Besides the low fruit-setting rate, the main reason is that apricot trees' ability to withstand low temperatures during bud break and blooming is greatly reduced. When temperatures fall below -3.9 at the bud stage, below -2.2 at the blooming stage, or below -0.6 at the young fruit stage, and the low temperature lasts more than 30 minutes, frost damage is likely to occur. Therefore...
-
Key Technical Points for Fertilization and Irrigation Management of Apricot Trees
(1) Fertilization: Each year in September to October, after new shoots stop growing, apply sufficient base fertilizer, mainly organic fertilizers such as barnyard manure and chicken manure, combined with a certain amount of quick-acting fertilizer. The amount of fertilizer applied should be determined according to the size of the tree and its growth conditions. Usually, apply 30-50 kg of organic fertilizer per tree, plus about 0.5 kg of compound fertilizer specially formulated for fruit trees. After sprouting...
-
Detailed Explanation of Key Management Techniques for Chestnut Trees After Fruit Harvest
(1) Disease Control 1. Dieback Disease Dieback disease, also known as chestnut blight, chestnut trunk blight, or chestnut bark rot, is a fungal disease. The pathogen mostly invades through wounds, mainly damaging the trunk and branches. It is not easy to detect in the early stages. When lightly scraping the bark with a small knife, small reddish-brown spots can be seen. After the spots merge into patches, the bark surface becomes raised...
-
Chestnut trees should be supplemented with zinc and boron fertilizer promptly after harvest
At present, the yield of most chestnut orchards is not high, with only 4-5 kg per tree. Many bearing chestnut trees have burrs but no nuts (that is, empty burrs). The reason, apart from extensive management, is largely related to the failure to apply or spray zinc and boron. Practice has proven that supplementing with soil application and foliar spraying of zinc and boron micro-fertilizers after chestnut harvest promotes flowering, differentiation, improves flower quality, and ensures...
-
Detailed Explanation of Key Techniques for Early High Yield in Young Chestnut Trees
1 Technical Measures to Promote Female Flower Formation 1) Watering in early spring. The 3 weeks before bud break is the period of female flower morphological differentiation; meeting the tree's water needs makes the fruiting branches thick and strong with many buds, laying the foundation for the next step of female flower bud formation. 2) Foliar topdressing. When the basal leaves have just unfolded and are turning from yellow to green, spray once with a 1000-fold dilution of PP200...
-
Key Technical Points for Skillfully Applying Boron Fertilizer to Chestnut Trees
According to surveys, in areas where chestnuts grow normally, 15% of the burrs are empty, and in some cases the rate is even as high as over 50%, seriously affecting chestnut growth. Boron deficiency is the main cause of empty chestnut burrs. Applying boron fertilizer can markedly inhibit the formation of empty chestnut burrs and increase yield. In spring, before the chestnuts sprout, apply it in a ring-shaped trench or in holes...
-
Key Technical Points for Pressing Green Manure under Chestnut Trees in the Rainy Season
Pressing green manure under chestnut trees can improve the soil and prevent water and soil erosion. It has many advantages such as low investment, low cost, and a high comprehensive utilization rate. The techniques for pressing green manure under chestnut trees in the rainy season are introduced as follows: 1. Sources of green manure for chestnut. First, artificially cultivated green manure, commonly including leguminous plants such as false indigo (Amorpha fruticosa) and mung bean; second, wild green manure,...
-
How to prevent flower and fruit drop in persimmon trees? Remember these seven key words
Peel: Girdling the trunk or main branches of vigorous trees not only promotes flower bud differentiation and earlier fruiting, but also reduces physiological fruit drop and advances fruit ripening. Girdling is generally carried out at the initial flowering stage and completed by full bloom, with an incision width of 0.3-0.5 mm. After girdling, wrap the incision with plastic (11395,70.00,0.62%) strips...
条件筛选