How to effectively fertilize leek

Amaranth is a family of Liliaceae, which is widely cultivated all over the country. It is rich in vitamins, minerals, carbohydrates and protein.

Amaranth grows from seed germination to flower bud differentiation, which is the growth period of roots, stems and leaves. It is divided into germination stage, seedling stage, vegetative growth period and wintering dormancy period. From flower bud differentiation to pollination and fertilization, the seed matures and is the reproductive growth stage of amaranth. This period is divided into flower bud differentiation stage, convulsion flowering stage and seed development stage.

The fertilizer requirement of amaranth is: the growth amount and the amount of fertilizer consumed in the seedling stage are small, but the vegetative growth period, especially in the spring and autumn harvest season, the growth amount and the amount of fertilizer required, should be fertilized in large quantities. The 2 to 4 year old leek grows vigorously, has strong tillering ability, high yield, and requires the largest amount of fertilizer, which is the peak of fertilizer demand. Amaranth, which is more than 5 years old, gradually enters the aging stage. In order to prevent premature aging, it is necessary to strengthen fertilization.

Fertilization technology of leek: 1. Base fertilizer. On the basis of the application of organic fertilizer, 25 to 30 kg of phosphate and potassium phosphate per acre. 2. Topdressing. In the autumn, the topdressing is generally twice. The first time is to chase the Tianji brand of NPK fertilizer 30~35 kg, the second time to chase the Tianji brand NPK 20 kg, and apply the organic fertilizer once before winter. Fertilization in spring should be combined with organic fertilizer to chase the Tianji brand of 20-30 kg of NPK fertilizer to facilitate the return to green. For each harvest, the application of Tianji brand NPK fertilizer is 30-35 kg per mu.