Mainly eating tender moss.

Base fertilizer should be sufficient and balanced.

Topdressing should be based on available nitrogen fertilizer.

1. Sprinkle 2,500-5,000 kg of high-quality farmyard manure, 50- 100 kg of calcium superphosphate and 50 kg of ammonium bicarbonate into each mu of land, and dig twice manually to make the fertilizer and soil fully mixed.

2. Appropriate topdressing, mainly nitrogen topdressing. The first topdressing should be at the seedling height of 10- 12 cm, and then topdressing per mu 1 time, urea 15-20 kg.

Teacher Dou refers to it.