Introduction Experiment of Maize Variety Tieyan 9 19

The maize varieties Tieyan 9 19 are introduced as follows:

Tieyan 9 19 maize variety is a single cross bred by Tieling Academy of Agricultural Sciences 20 10 with Tie0940 as female parent and Tie0941as male parent. The male parent is from Tie 08 108× PH4CV inbred line, and the female parent is from 9206×PH6WC inbred line. The maize variety Tieyan 9 19 is semi-compact, with plant height of about 3 1 1 cm, ear height of about 1 16 cm and plant leaves of about 2 1.

The spike is tubular, the spike length is about 19.9 cm, the rows per spike are 16-20 rows, the filaments of female spike are lavender, the anthers of male spike are lavender, the spike axis is red and the grain is yellow. The grain shape of the middle ear is horse-toothed, the weight of 100 grains is about 38.8 g, the seed rate is 84. 1%, and the lodging rate is about 4.0.

Corn planting technology

1, soil preparation

Seize the favorable opportunity of good soil moisture in the near future, pay close attention to the weather change, prepare the soil in time, and prepare for farming as early as possible, so as to create conditions for sufficient sowing of soil moisture and one-time seedling protection. For areas prone to spring waterlogging and low-lying plots, it is necessary to make use of the conditions such as rising temperature and strong wind in spring to clear ditches and manage soil moisture as soon as possible, and plough, dry and cultivate soil moisture to ensure timely sowing. For spring plots and areas prone to spring drought, it is necessary to prepare soil as soon as possible, make full use of soil reclaimed water, and timely suppress moisture conservation. For autumn plots, it is necessary to suppress moisture in time.

2. Seed selection

According to the conditions of light and heat resources in various places, the variety layout is scientific and the maturity is reasonable. Select excellent varieties that have passed the national or provincial examination and approval (identification), are resistant to pests and diseases, have high and stable yield, have high resource efficiency and wide stress resistance, and are suitable for mechanized operation. The maturity of varieties should be appropriate to prevent cross-regional planting and ensure safe maturity.

In the corn structure adjustment area, it is necessary to choose high-quality special or grain-fed silage corn varieties that have passed the national or provincial examination and approval (identification) and are suitable for local planting according to local conditions, pay attention to purchasing high-quality coated seeds, improve the emergence rate and group uniformity, and prevent seedling pests and underground pests.