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1. Variety selection Select heat-resistant, late-stemming, fast-growing varieties, such as Beijing parsley, North China leaves, and so on.
2. Soil fertilization for soil preparation Select soil to be more fertile, have good water retention and fertilizer retention performance, be able to pour drought and energy, and have good permeability. For plots that have not been planted with parsley for more than five years, they must not be replanted. For every 667 square meters (1 mu), rot 4000 kg of farmyard fertilizer and 100 kg of cake fertilizer. The former crop residues should be removed to reduce the occurrence of pests and diseases. Deep plowing, squeaking, hoeing, width 1 to 1.5 meters, length 8 to 10 meters is appropriate.
3. Immersion seed germination Summer planting parsley seeding period is not strict, generally 5 to June sowing, harvested 40 to 50 days after sowing. Immersion germination before sowing can ensure that the emergence of Qi Qi, seedlings soon. Germination method: Soak the seed with water for 24 to 30 hours, remove it and spread it on a damp, non-polluting sack. The thickness is 2 to 3 cm. When the temperature is between 20°C and 25°C, it is agitated 1 or 2 times a day to maintain a certain amount of moisture in the seeds. After 3 to 4 days, the seeds can be sowed.
4. Spreading seedlings in the summer to plant parsley is better. After spreading seedlings, the seedlings can cover the surface of the seedlings to reduce the evaporation of water and reduce the temperature between the surface. The sowing method is to "broadcast two pods to stay." Put the remaining cover soil on the remaining surface of the two sides, then fill enough water, wait until the water is seeped and evenly sow, cover the soil 2 cm after sowing, and then broadcast the empty space. First broadcast the same. For every 667 square meters, about 2 kilograms are used. After all broadcasts, a repressive protection will be carried out. If the weather is dry and the soil moisture is small, it will affect the emergence of seedlings.
5. Field management When the seedlings are 4 to 5 cm in height, thin seedlings and weeds should be used to ensure that the seedling distance is between 2 and 4 cm. After thinning, combined with irrigation to chase a thin manure. When the seedling height is 7 to 8 centimeters, the first time the fertilizer is chased, then the amount of fertilizer to be used is large, and the application of ammonium sulfate 20 to 30 kg per 667 square meters. Keep soil moisture moist, water once every 4 to 5 days, and use shade to cool down. Summer parsley can be combined with sparse seedlings and harvested in batches.
How to grow good parsley in summer?
Parsley prefers cool climates that do not tolerate high temperatures and stops growing when temperatures exceed 30°C. So, how can we grow parsley in the summer?