New Year Pear Tree
In order to maintain a new shoot that is selected for the annual new pear cultivation and grows vigorously upright, urea is applied in the middle and late May, with 1 per plant. When applying it, the main trunk of the tree is 30 centimeters long. Each plant is applied with two holes, two and a half for each hole. After watering. After 20 days, the second urea was applied, two for each plant, two in 40 centimeters from the trunk, and then watered. After mid-June, the compound fertilizer with low N, P, and K fertilizers was applied. Each plant was applied with 2-3 tubes. Two parts were applied at 40 cm from the trunk and then watered.
Usually after the end of May, the pear rust ticks are seriously damaged. It is necessary to check the pears carefully. If it is found that the individual shooter suffers from graying, it must be sprayed immediately. The medicine may be selected from Ba Zhi Ling, Anthrazone, Baimuk or Ala. Acaricidal agents such as ellamectin, control 1-2 times, can achieve significant results.
According to the practical experience of pear production, in May, new pear trees were planted to control black spot, pear wood locust, aphids, triceratops, red spider and rust mites, and 1.8% of avermectin 2000 times liquid was selected as the drug. Or 30% mothite Ling 1500-2000 times liquid + 5% high efficiency perhydrothrite 1000 times liquid + 90% BEP 1000 times liquid + 0.2% -0.3% urea; In June, newly planted pear trees to prevent black spots Diseases, like a beetle, beetles based, the choice of drugs are malathion 1000 times liquid + 5% high-efficient liquid permethrin 1000 times + carbendazim 600-800 times liquid + 0.2-0.3% potassium dihydrogen phosphate (hanging Insect killing lamps, prevention and treatment of scarabs); In July, newly planted pears were mainly used to prevent melasma and other diseases. Select Bordeaux mixture with copper sulphate, lime : water =1:4:400 or 50% dexamethasone 1000 times solution. Or 50% Tuzeit 600-800 times or 40% Fuxing Emulsion; In August, the newly planted pear tree was mainly used to prevent melasma and all kinds of insect pests. The drug used was 5% high-efficient hydropermethrin 1000 times solution + 90% aluminum phosphate 1000 times. About 20 days to fight a drug.
The above management measures are also applicable to the low-drying tree or the two-year-old weak tree after the second dry.
Two year old pear tree
After the two-year-old pear trees are sprouted, a large number of new shoots are sent out on the main trunk. The competition between the extension heads of the main trunk is to be treated differently: the height of the tree is about 1.5 meters, and the competition branches under the main head are topping; the height of the trees is about 2 meters. , to eliminate some of the competition branches, the rest topping, or all topping.
In the spring, after the budding, the branching effect is not good, or the short branching part can be secondarily sculpted, or every 25 centimeters (with a certain number of leaves below the bottom knife) to promote the bud Germination, grow into new branches.
After mid-June, the compound fertilizer with low N, P, and K fertilizers was applied. Each plant was applied with 5, two in 40-50 cm from the trunk and then watered.
For the biennial pears, in addition to the same pest control measures as the one-year-old pears, 0.3% of potassium phosphate monobasic fertilizer and other foliar fertilizers should be added at the same time as spraying the liquid.
For the two-year-old pear trees, we will begin the labor-saving tree-planting construction work from the spring. The preparation materials include cement pillars (12 centimeters wide, 6 centimeters thick and 320 centimeters high), ground anchors, and galvanized iron wire (No. 10). A cement pillar is planted every 10 meters. The cement pillar is buried 70 centimeters underground and 250 centimeters on the ground. The galvanized iron wire is at 110-120 centimeters and 230-240 centimeters on the ground. The early scaffolding can prevent the tree from bending or breaking and keep the trunk standing and growing.
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hydroponics system-nutrient technique (NFT)
NFT does not give average support to roots. Typically, the roots sit in a long sloping channel irrigation (Fig. 1.1). The nutrient is introduced into the high class of the canal and allowed to flow over the roots after which it drains into the nutrient tank. This is then re-pumped back into the channel to repeat the watering process.
This feed cycle can be intermittent or continuous. An & lsquo; The intermittent 'rss cycle is controlled by the clock and repeated several times per hour. this is sometimes called the "NFT pulse". The NFT pulse usually achieves better aeration of the roots as the roots are exposed to air between each feed. A & lsquo; continuous' rss cycle works non-stop. This is often used in commercial operations.
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Hydroponics is an ideal way to grow plants in urban areas. This makes it a great hobby that helps you to relax and it is fun to watch the hydroponic plants grow in the garden nft.
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