Wheat early spring antifreeze four strokes

When the soil is re-slurry, the topping can be carried out, and the soil can be loosened, preserved, warmed, weeded, and the ability of the wheat seedlings to keep warm. Regardless of weak seedlings, Wang Miao or strong seedlings, they must pay close attention during the greening period; for wheat fields with prosperous trends, they can also be properly squatted to suppress spring tillers.

Repression of the early spring on the wheat field suppression, you can crush the scum, bridging the cracks, so that the wheat roots and the soil close to prevent cold air intrusion and damage the wheat seedlings. At the same time, the repression also has a lifting effect, which can increase the water content of the soil surface layer, and is beneficial to alleviate the low temperature chilling damage.

Fertilization of wheat in early spring can make up for winter soil fertility consumption, increase nutrient accumulation, promote the growth of wheat seedlings, and resist or reduce early spring frost damage, especially in the years when winter temperatures are high, wheat seedlings continue to grow, and soil fertility is high. Fertilization in early spring is especially important. Wheat fertilization in early spring should seize the favorable opportunity of the soil just thawing and returning to the pulp, and borrowing it to open the ditch; it should not be watered to avoid lowering the ground temperature and affecting the growth of wheat seedlings.

Spraying wheat in the greening period to the body, spraying 200ppm paclobutrazol solution per acre 30 to 40 kg, can inhibit the growth of wheat seedlings and enhance cold resistance. Liu Guangfang

Integrated pest control technology for fruit trees in dormant period

Turning the garden and turning the garden can not only eliminate the winter pests, but also improve the physical and chemical properties of the soil and improve the soil water and fertilizer retention capacity of the orchard. The depth of the garden should be 20 to 30 cm. The better the time is, the better the freezing effect will be in the early spring, but the effect is worse than that in the early winter.

Some pathogens and pests of Qingyuan fruit trees, such as pear scab, apple early leaf disease, rot disease, ring disease, pear net, some red spider, pear small heartworm, aphid and other pathogens, pests in the rough cracks of the fruit trees, dry Overwintering branches and weeds, removing these sundries, scraping off the branches and old skins, combining winter shears, cutting off the pests and branches of the trees, and burying them in the deep, burning, can greatly reduce the number of wintering pests To reduce the pressure of prevention and control in the coming year.

Whitening and whitening of the trunk can alleviate sunburn and freezing damage, delay the germination and flowering of the fruit trees, protect the fruit trees from the damage caused by the spring frost, and treat the tree diseases and insect pests. The number of times of whitening is preferably 2 times, the first time after the leaves are frozen until the soil is frozen, and the second time is in the early spring. The dry part is mainly composed of the trunk and the base of the main branch, and the south side of the trunk and the fork of the tree are mainly painted.

The shovel remover sprays 3 to 5 times of the sulphur sulphur mixture and 200 times of sodium pentachlorophenol before the germination of the fruit tree to eradicate the pests and diseases that winter in the tree.