Winter vegetable cold protection method
Winter vegetables often encounter cold weather, frost, frost, and other bad weather, poor invasion and protection, often lead to greater economic losses. Here are some ways to prevent cold.
First, nitrogen control
Seedling period appropriate to reduce the amount of nitrogen fertilizer, avoid partial nitrogen fertilizer, so as to avoid the growth of young plants, cold resistance is poor. Top dressing is early, in order to promote vegetable seedlings. Before applying low-temperature nitrogen fertilizer, it is advisable to spray 0.2-0.3% potassium dihydrogen phosphate 1-2 times.
Second, fertilization
Grasp the sunny weather, using cattle, pig manure or compost, and other warm home fat 2000-3000 kg per 667 square meters, applied to the root of the dish, you can increase soil temperature 2-3 degrees.
Third, soil cultivation before the combination of cultivator, the smashed soil Ministry of vegetables at the root can not only loosen the soil, but also can directly protect the root system, but the cultivator depth of 7-8 cm is better.
Fourth, smoke
With piles of weeds, straw, litter, etc. piled up, except for the ignition, the rest was lightly compacted with dry fine yellow mud, before the onset of frost, the smoke from the uppile head flared up and smoked, such as an open flame, then fine Soil seal, so that it can not only disperse the invasion of cold currents, but also the accumulation of fire and soil fertilizer.
V. Injection
In the 3-4 days before the onset of the cold current, the oil-suppressing agent selected 30- to 40-fold oil spray inhibitors on sunny days to form a layer of invisible cold-proof film on the leaves, which helps to reduce the transpiration of the leaves and protect them. The vegetables are warm and cold.
6. Before pouring feces and freezing, 400-500 kilograms of thin manure water per 667 square meters will be poured on vegetable soil to reduce the degree of freezing of vegetable soil and reduce frost damage.
Seven, winter irrigation
1 to 2 days before the onset of the cold current, when the weather is fine, water should be poured. After freezing, it must be noted that after the cold weather, the weather does warm up. The soil temperature rises to 2-3 degrees, and the soil and vegetables can only be thawed. Otherwise, It will aggravate freezing injury. The winter irrigation should be poured thoroughly, and the field water can be infiltrated on the same day. After irrigating, take advantage of the opportunity to hold loose soil.
Eight, cover
In the afternoon before freezing, cover the pods or vegetables with straw, etc., but the covered straw should be sparsely drawn. Do not cover all the vegetables so as not to affect photosynthesis. It is advisable to cover 100 kg of straw every 667 square meters.
Nine, sprinkle gray
Before the onset of low-temperature freezing damage, sprinkle a thin layer of ashes or ash on the vegetables, or sprinkle grass ash or fire and earth ash between the rows of vegetables to 1,000 kg per 667 square meters, which can prevent cold and prevent freezing, and increase fertilizer, but also on the cruciferous winter Root rot of vegetables has better control effect.
X. Precipitation For cold-stained and low-lying land with high groundwater levels, we must pay close attention to opening up the “three channels†to ensure the openness of the gutters so as to reduce the water level, eliminate waterlogging, increase soil temperature, and promote vegetable growth.
Eas anti-theft antenna is mainly suitable for large supermarkets, shopping malls, bookstores, audio stores with Security hard tags, rf soft label, AM lable,Pin and Lanyard, eas detacher, Hook Lock,EAS Self Alarm Tag, EAS Safer Box,etc.
Rf Label ,Eas Rf Label,Rf Soft Tag,Rf Security Labels
ZHEJIANG BOSHINE ELECTRONIC SECURITY CO.,LTD , https://www.boshine.com