Technical measures for snow and frost prevention of mulberry, tea and fruit crops
1. Fruit: (1) Citrus: spray steam inhibitor on tree crown before freezing, smoke in garden, improve antifreeze effect. in case of orange freeze injury, timely remove curled freeze dead leaves and dead shoots, bandage snow pressure damaged branch, prune and prune crushed branches, treat wound with wound protector, spray foliar fertilizer in time, strengthen fertilizer and water management, topdressing lightly frozen trees with 0. 5% urea for 2-3 times, and applying thin fertilizer separately for heavy frozen trees for many times. (2)Loquat: cover the tree tray with soil or rice straw for heat preservation; timely apply fertilizer outside the root with 0.2% urea +0.2% potassium dihydrogen sulfate solution or 0.1% carbon black solution to improve cold resistance; adopt bundle treatment, wrap the lower leaves of the flower ear upward, or bundle the big branches together to reduce the damage of the flower ear and young fruit of loquat by cold freezing, and also bag the flower ear to reduce freezing damage.
Second, tea. The tea garden is paved with grass, weeds, straw, pruned branches and the like are covered with the tea garden, and the awning surface can also be covered with a sunshade net, and plastic film or straw and weeds are covered on the sunshade net to improve the anti-freezing effect. The tea garden with light freezing injury degree and original good picking surface shall be lightly pruned and cleaned to facilitate tea bud germination. The pruning degree shall be light rather than deep, and the picking surface shall be kept as far as possible; the tea garden with heavy damage shall be deeply pruned or heavily pruned or even mowed. At the same time, timely spraying foliar fertilizer, in order to restore tea vitality and tea bud germination and promote the growth of new shoots; culture crown. After light pruning tea tree, spring tea picking should leave 1 big leaf, summer, autumn tea is picked according to the routine, in order to help raise the crown, but also can pick more high-grade famous tea.
- Prev
Identification and control of tea aphid
Tea aphid is also known as orange aphid. Belongs to Homoptera, Aphididae. It is harmful to absorb juice on the tender shoots and leaves, and when the tea trees are seriously damaged, the tender shoots and leaves atrophy and curl, the growth stops, affecting the yield, reducing the quality, the dried tea made from the damaged buds is dark, the soup is turbid and tastes fishy, the color, aroma and taste are very bad, and the aphid excreta "honeydew" pollutes the bud leaves, causing the breeding of coal disease. The winged adult of tea aphid is about 2 mm long, yellowish brown and glossy. The base of each node of the antennae is yellowish. The midvein of the forewing is bifurcated. There are 4 pairs of black spots on the dorsal side of the abdomen. The winged nymph is brown and the wing buds are milky white.
- Next
Varieties of Longjing tea
Longjing tea is a treasure of tea, and "Xihu Longjing Tea" is famous for its "green color, fragrance, mellow taste and beautiful shape". The quality characteristics of high-grade Longjing tea are as follows: the appearance is quite sharp, flat and smooth, Miao Feng is exposed, the color is green and slightly yellow, the aroma is high, fresh and quiet, the taste is sweet and fresh, the soup color of apricot green is clear and bright, and the bottom of the leaf is tender and even into flowers. Because Longjing tea has a unique style, strict quality requirements and strong seasonality, it is also very particular about the choice of varieties. Generally speaking, the varieties suitable for making Longjing tea should have
Related
- Fuxing push coffee new agricultural production and marketing class: lack of small-scale processing plants
- Jujube rice field leisure farm deep ploughing Yilan for five years to create a space for organic food and play
- Nongyu Farm-A trial of organic papaya for brave women with advanced technology
- Four points for attention in the prevention and control of diseases and insect pests of edible fungi
- How to add nutrient solution to Edible Fungi
- Is there any good way to control edible fungus mites?
- Open Inoculation Technology of Edible Fungi
- Is there any clever way to use fertilizer for edible fungus in winter?
- What agents are used to kill the pathogens of edible fungi in the mushroom shed?
- Rapid drying of Edible Fungi