Stainless Steel Cupboard for Clothes,Portable Cupboards,Kitchen Cupboards Pukang Medical Instruments Co., Ltd. , http://www.xs-medicalbeds.com
Summer and autumn management of grape nurseries
1. Management of vines 1. Generally speaking, the vines of cuttings and seedlings grow to 40-50 centimeters in mid-July, and there will be several new shoots or several shoots of new shoots. Seedlings are difficult to grow strong seedlings. For a dense nursery, it must be removed in time to take a robust new shoot, and the rest of the shoots or sub-tips should be wiped out. 2, topping. When the grape seedling shoots grow to about 50 centimeters, 10 to 15 centimeters is removed. The side shoots that take place after the heart-pick, except for the one that left the top, are all erased. When the tip of the tip of the apex is 5 to 6 leaves in length, leave 2 to 3 leaves topping. The auxiliary tips regenerated on the auxiliary tip are all erased. 3, tied. Some high-end grape varieties, fruit growers want to grow a few species, seedlings on the new shoots can be put to 1 meter and 15 meters, such seedlings must be tied. There are two ways. The first kind is that every second line of seedlings can be inserted into a bamboo pole every 3 to 4 meters between its rows, and 2 to 3 thin iron or nylon ropes can be pulled. Two bamboo poles each pull a pull line. All two seedlings are tied to bamboo or nylon ropes. The second, if the seedlings are relatively sparse, one bamboo seedling per seedling may also be used to bind the seedling shoots to bamboo shoots for growth. The upper end of the bamboo pole is connected with a crossbar to prevent the wind from knocking over. 1, fertilization, two ways. The first is to top-dress fertilizer. Generally can catch urea. When the seedlings grow to 7 to 8 leaves, 15 to 20 kg of urea is applied to the urea. After 15 days, the urea is applied once. Generally, it can be applied 3 times. The second is top dressing. In the summer, spray spraying is used to spray 05% urea, and in autumn, it is sprayed with 03% potassium dihydrogen phosphate. Each spray can be used twice. 2, timely watering. Before the grape cuttings sprout, they are usually poured every 7 days. After the new shoot reaches 10 to 20 centimeters in length, water is poured every half month. After the new shoots grow to 30-40 cm, they are poured once every 20 days. If the weather is rainy and the sensation is better, do not water it. When the seedlings grow to 50 centimeters, watering should be properly controlled. If the nursery stock does not come out of the garden before winter, it must be poured over the winter water. Every time you topdress, you should water it. 3, weeding weeding. Most of the nursery gardens are covered with plastic mulches. Generally, hoe cultivators are used to remove weeds. On both sides and on both sides, it is necessary to remove the weeds at the same time after each watering. Second, pest control This is a vital part of training strong seedlings, virus-free seedlings. In the meantime, the major diseases to be controlled are downy mildew and blackpox; the main pests to be controlled are the cotton bollworm, beet armyworm and grape hawk moth. The use of spraying can be integrated pest control. When the seedlings grow to 7 to 8 leaves, spraying is started. A 50% carbendazim 500 times solution can be sprayed. After half a month, 80% spray grams are sprayed 600 to 800 times. After the seedlings have been picked up, spray 1:07:200 times Bordeaux mixture. If downy mildew occurs, spray 600 times Kepo 600 times, or 80% 300 times 500 times. In autumn, the leaves have become old and the shoots have basically stopped growing. At this time, the Bordeaux mixture is mainly 1:1:180 or 1:15:180. In the season of insect pests, medicines for preventing and treating such insect pests may be added during bactericidal spraying. Found that there are grape hawk moth, you can add 1000 to 1500 times the dichlorvos solution, if you find a cotton bollworm, beet armyworm is added Longwei 1 1000 to 1500 times liquid. It is best to avoid high temperatures at noon and spray after 4pm. Third, breed purity management Each grape variety has its own physiological characteristics. When the new shoot grows to 7 to 8 leaves, its shoots and young leaves are well recognized. After the hybrids are identified, they must be rooted and unplugged. If there are several varieties in large-scale nurseries, they should be marked with bamboo sticks and inserted in different varieties. It is better to use plastic ropes to make a circle. To create a variety file, plan the nursery to show the location of each variety. And the number of nursery, this work must be rigorous, in case of mixed varieties, even if the high-grade varieties mixed in the common varieties, also belong to hybrid seedlings, will bring losses to the future production. IV. When the leaves of the nursery stock fall out of the garden, they should not leave the nursery immediately. In this case, the nutrition will continue to be stored in the roots. Generally speaking, it is appropriate to go out of the garden before and after the “Little Snowâ€.