When can corn, jade and gold be harvested in a day?

1, and the first application at the 3 ~ 5 leaf stage of maize and the 2 ~ 4 leaf stage of weeds has good effect;

2. The second application is about 7 days after application, which can prevent insects and diseases;

3. The third application is at the eight-leaf stage of maize, which is the best control period.

There are many varieties of corn, which are divided into food feed varieties, vegetable varieties (including waxy varieties, sweet varieties and corn buds), processed varieties (sweet corn and corn buds) and popcorn varieties (special varieties for popcorn).

Extended data:

Fertilization should also be applied in time during the growth of maize, and the key measures to prevent lodging are to apply more potassium fertilizer, control water at seedling stage and prevent over-density. Only when the roots of corn are deep can the plants be strong and the lodging resistance be strong. After 2-3 years of rotary tillage, the soil should be turned 1 time. Deeply plough the soil for 35cm, apply nitrogen fertilizer in stages, and increase the amount of organic fertilizer.

Fertilizer operations are light seedling fertilizer, heavy spike fertilizer and flower-filling grain fertilizer. Before the jointing stage of maize, the seedling fertilizer should be ditched on the seedling side, and about 30% of all phosphorus, potassium, sulfur, zinc fertilizers and nitrogen fertilizers should be deeply applied to 15-20cm to promote roots and strengthen seedlings;

Applying ear fertilizer at the big horn opening stage (leaf age index 55%-60%,112 leaf spreading stage), and controlling topdressing at 50% of total nitrogen content to promote ear size and more grains; Topdressing flower fertilizer at grain filling stage, controlled at 20% of total nitrogen content, to increase 1000-grain weight and enhance leaf photosynthesis.