First, the selection of flowers pollen varieties suitable for pollination, collecting petals have been loose but not yet open bell flowers, apples do not use the central flower; large pears leave 1? 2 edge flowers. Spending more trees, spending too much, combined with sparsely flowering. The amount of flowers collected depends on the amount of pollination. In general, 2.5 kilograms of anthers and 0.5 kilograms of dry pollen can be collected for every 25 kilograms of flowers, and can be used for tree pollination in fruit trees of 20 to 30 acres. Second, the freshly harvested flowers cannot be stacked and cannot be packed in plastic bags. The buds should be poured into a fine wire sieve in a timely manner in the room and gently rubbed by hand, and the anthers should be removed. Then the anthocyanin under the armpit was used to remove the impurities and dried. Third, the powder will be anthers spread out in a dry, ventilated, warm and clean indoor white light, the temperature is maintained at 22 ~ 25 °C. After 1 to 2 days, the anthers cracked loose powder, and then the pollen was finely sieved to remove impurities. After milling, the pollen is placed in a dark bottle, sealed and placed in a refrigerator for use. Fourth, pollination 1, artificial point will be pollen 1 copies, plus 5-8 parts of talcum powder mixed point powder. This method has the advantage of sending powder to the stigma. The fruit set is accurate and reliable, and the fruit is well developed. Point of technology: the diluted pollen into a dry vial, tied with a string hanging on the finger in order to operate, use a pencil with a pencil to rake the pollen, gently on the stigma of the apple center flower, big pear side flower One touch can be. Each pollen can grant 5 flowers, and the distance of the flower can be determined according to the species, species and amount of flowers. It is best to use a small duster to flower by flower. It can be transformed into a duster with a small spray of mosquitoes. 2, roll bar rolling method This method is most suitable for apricot, peach, cherry, etc. first flowering after long-leaf tree pollination. 1 towel bar production: the new towel first wrapped with wheat straw or old cotton and other fillers, sew the edge to make it cylindrical, 40-50 cm long, about 9 cm in diameter. Then insert the bamboo raft into the towel bar and bind the lower mouth with a string. 2 Rolling method: When the fruit tree blooms about 40%, first roll the pollen tree to make the towel bar covered with pollen, and then gently roll on the main cultivar flower. Spend sparsely and roll slowly, roll it over twice, and take it all over the place. Generally stick a pollen can roll about 10 trees. 3, dusting method with 1 part of pollen, plus 100 parts of talcum powder fully mixed for injection. One is dusting with a duster; the other is using gauze powder, can be diluted in the pollen into a bag with 2 to 3 layers of gauze, with a string tightly tied to the mouth, tied to the long bamboo poles, Lift the bag up to the crown and canopy of the tree. Tap the bamboo poles and the pollen can be scattered out of the bag for pollination. 4, spray method First 500 grams of sugar, 30 grams of urea, 10 kg of water dubbed into a mixture of pro-spray before adding 25 grams of pollen and 10 grams of borax, with 2-3 layers of gauze filter out impurities. The pollen aqueous solution should be used with it. About 25% of apples and pears bloom, and temperatures are best at 22-25°C. V. Points to note: 1 best in sunny weather; 2 pay attention to the affinity of pollen, the same strain of different varieties can not pollinate each other; triploid apple varieties can not be pollinated trees, mixed pollen effect is good; 3 apple to give the central flower In order to give priority to pears, it is better to grant the first and the second flowers to be opened first; 4 to spray the flowers and preserve the fruit and fruit can not replace the pollination, and it can be combined with spraying the high-hanging elements and keeping the flower and fruit protecting agents. Amino acid calcium, etc.; 5 pollination time and frequency, 25% in the open flower grant, flowering time when the order can be given 1 tidy; flowering time can be imparted inconsistent 2 times, to flower open the day the highest rate of fruit set pollination.
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