The harvest of leeks is too early, the production of leeks is not sufficient, the yield is not high, the harvest is too late, the growth of agricultural technology is too long, the crude fiber content in leeks is increased, and the quality is deteriorated, so it is necessary to harvest at the right time.
The standard for suitable harvesting of amaranth is: plant height is about 35 cm, the average leaf size is about 5, and the growth period is more than 25 days. The specific harvesting standard can be controlled according to plant growth, nutrient accumulation and market demand. Head leeks are generally harvested at a seedling height of 20 cm. In order to facilitate the growth of the amaranth, when the amaranth is cut, the soil grower is left at 7 cm, and the non-cultivator is left at 5 cm. After each time, leave about 3-5 cm. The greenhouse leeks are generally harvested 3 times in the shed, and after harvesting the shed, two more green scorpions can be harvested.
Multi-layer covered greenhouses or greenhouses with good insulation performance can produce 2500-3500 kilograms per acre. If the roots are well cultured, the storage nutrients are more, and the management is fine, the yield per mu can reach 5000-5500 kg.
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