When is the planting time for waxy corn?

SummaryThe planting time for waxy corn is the same as that for ordinary corn varieties. Generally, it can be sown around Guyu on April 20 in spring, when the 5-10cm soil temperature in open fields is stably above 10°C. Greenhouse planting is also an option, and this planting method is not limited by time.

I. Planting time for waxy corn

The planting time for waxy corn is the same as that for ordinary corn. It is suitable to sow around Guyu on April 20, when the 5-10cm soil temperature in open fields is stably above 10°C. If you want waxy corn to reach the market earlier, you can also build a greenhouse for off-season planting.

II. Planting techniques for waxy corn

1. Choosing the planting site

Waxy corn should be planted in plots that are flat, have fertile soil and have irrigation conditions, to avoid pollen self-perception effects, reduce the viscosity of the variety and affect its appearance. In order to maintain the seed characteristics of waxy corn, it needs to be planted in isolation from other types of corn. Generally, spatial isolation for planting must not be less than 300 m, and barrier isolation must not be less than 150 m. For time isolation, sowing should be about 30 days apart from ordinary corn.

2. Land preparation and fertilization

Before planting waxy corn, 4000 jin of high-quality farmyard manure can be applied per mu. Alternatively, during land preparation, 3 jin of zinc sulfate, 20 jin of potassium sulfate and 60 jin of diammonium phosphate can be deeply applied to the soil at one time as base fertilizer, with a fertilization depth of 10-15cm. After the fertilizer is evenly mixed with the soil, sowing can be carried out. This can avoid burning the seeds and is beneficial for seed germination.

3. Timely sowing

(1) For planting waxy corn, the seed rate per mu is about 4 jin. Before sowing, the seeds should first be soaked to promote germination. Generally, the suitable temperature for germination is about 25°C. After the seeds have almost completely shown white, they can be directly sown. The suitable sowing time for waxy corn is around April 20, and sowing can be carried out when the 5cm soil temperature is stably around 10°C.

(2) Sow 3500-3600 holes per mu, with 2-3 seeds per hole. Because waxy corn kernels are not plump enough and contain less starch and other nutrients, the germination rate is poor and the young shoots have weak soil-penetrating ability, so the emergence rate is lower than that of ordinary corn varieties. Therefore, sowing should not be too deep. Shallow sowing can be done appropriately, with a small amount of soil cover, generally about 2-4cm.

4. Topdressing during the growing period

Because waxy corn is eaten fresh, it needs early topdressing and irrigation, which helps promote high quality and high yield of waxy corn. The first topdressing at the seedling stage can be carried out when the seedlings grow 7-9 leaves, with 30 jin of urea applied per mu. The second topdressing can be carried out at the jointing stage of the plants, with 60 jin of urea applied per mu.