If wheat is sown in the soil in time and early, the planting density is not large and the water and fertilizer are sufficient, a basic seedling can tiller into dozens of ears. I planted the big spike wheat developed by Luo Hongxi, a basic seedling 15 spike, with 60 grains per spike. That is, 100 kg of wheat seeds germinate and emerge in the soil, which can yield 90000 kg. However, if sowing is late, planting density is high, water and fertilizer are insufficient, wheat does not tiller, and the main stem forms spikes, with only a few grains per spike. Even if all the seeds of 100 kg germinate and emerge, only a few hundred kg can be harvested. (Victoria crown)