Spring fertilizer of mulberry

Also called germinating fertilizer. It is generally applied before mulberry germination, mainly quick acting fertilizer. The application amount of spring fertilizer accounts for about 25% - 30% of the annual fertilization amount. Spring fertilizer can be divided into two times. The first fertilization is carried out in late March. About 1000-1500 kg of manure and urine and about 2 kg of urea are applied per mu. The first dosage is generally about 70% of the total amount of spring fertilizer; The second fertilization was carried out in late April, with about 10kg urea applied per mu< br>

Summer fertilizer of mulberry

Fertilization time is generally divided into two times from summer cutting of mulberry trees to silkworm rearing in early autumn. The first fertilization shall be carried out immediately after summer cutting. It is suitable to apply manure, compost and other organic fertilizers together with chemical fertilizer. About 1055kg manure, 30kg urea and 15kg phosphate fertilizer are applied per mu; The second fertilization is conducted after bud thinning. At this time, the fertilizer is mainly quick acting fertilizer, and about 15kg urea is applied per mu. The application amount of summer fertilizer is about 40% - 50% of the annual amount

Autumn fertilizer of mulberry

The fertilization time is after the harvest of mulberry leaves in autumn. The autumn fertilizer should not be applied too late, and should not exceed the end of August at the latest, otherwise the production of branches and shoots will be delayed and it is difficult to be damaged by freezing. The main fertilizer is quick acting fertilizer. Generally, 15kg urea is suitable for each mu. Autumn fertilizer application amount generally accounts for about 10% - 20% of the annual fertilizer application amount

Winter fertilizer of mulberry

Fertilization shall be carried out before the soil is frozen in winter. The application amount of winter fertilizer generally accounts for about 20% of the annual fertilization amount. It is suitable to choose organic fertilizer, such as manure, compost, pond mud, etc., which can be turned in combination with winter tillage< span>