During the cold period in winter, rape can be easily chilled and easy to appear: a root-lifting seedling is lifted. In the winter, the water in the soil is frozen and the volume expands. The soil layer rises upward and the rapeseed roots are pulled off. The soil was frozen overnight, and the soil was subsidence. The roots of the rape were exposed or broken and the ground was laid down. Crops that are extensively cultivated, or because they are sown late, have small, shallow roots that are prone to this type of frost damage. The two leaves were frozen and showed symptoms such as leaf rigidity, shrinkage, and purple. The temperature in the county was relatively low recently, and some rapes suffered from frost damage. According to the cooling situation, the rape should be remedied as soon as possible.
1. With water remediation, sound drainage and droughts in the ditch can inhibit the growth of rapeseed roots, affect the decomposition and absorption of fertilizers, and the ditch system should be dredged so that water can be used to adjust fertilizers and regulate air and promote the recovery of oilseed rape after its freezing.
2, warming remedies, spread the cover on frozen straw rape straw and other crops to cover the crop, in order to increase the temperature. Conditional dry straw 250-300 kg per mu can be spread evenly between rows of rapeseed, so that the mud does not see the sky, the grass does not clump, and then use the dredging soil thinly spread on the straw to prevent blowing off . The application of grass ash or coke ash in the roots of rapeseed can absorb heat and insulate and buffer the invasion of cold currents.
3. Remedy with fertilizers, timely applying wax fertilizer to weakly rapeseeds that have been frozen, applying wax fertilizer as soon as possible, mainly using manure and ammonium bicarbonate, and appropriately increasing potassium fertilizer. Every day, every mu Mufen Shi 500 to 750 kilograms, ammonium bicarbonate 15 to 20 kilograms, potassium chloride 5 kilograms or plant ash 50 to 75 kilograms. As a result of excessive growth of rape seedlings can not be applied nitrogen fertilizer, should be appropriate increase in phosphorus and potassium fertilizer, applied per acre 5 kg of potassium chloride or plant ash 50 to 75 kg, superphosphate 7.5 to 10 kg. The shortage of potassium should increase the amount of potash fertilizer, and promote the early recovery of rape seedlings.
Fungi, a large class of chlorophyll - free, can not carry out photosynthesis, heterotrophic lower class of plants. These include bacteria, slime molds and fungi. Their common characteristics are: the plant body has no differentiation of roots, stems and leaves, does not contain chlorophyll and other photosynthetic pigments (except a few photosynthetic bacteria), can not carry out photosynthesis, saprophytic life or parasitic life, that is, heterotrophic life. Most of the reproductive organs are single-cell structures, and the zygotes do not develop into embryos.
Ganoderma Lucidum Extract,Lion's Mane mushroom Extract,Chaga Mushroom Extract
Xi'an Double H Health Technology Co., Ltd , https://www.xahnhcj.com