Fengle 742 is a tubular spike, with an average spike length of 22.8 cm, 16 ~ 18 rows per spike, with 40 grains per row. The ear axis is red, the grain is yellow, and it is half-horse-toothed. The weight of 100 seeds is 40.5g, and the seed yield is 87.5%. It is one of the corn varieties with the highest yield in the central and western regions. Among them, Fengle 742 maize variety won the first place in the yield measurement activity of 20 19.
Fengle 742 is a new maize variety bred by Dryland Agricultural Research Center of Shanxi Academy of Agricultural Sciences. Fengle 742 maize variety has thick and elastic stems, developed roots, many aerial roots, strong grip, but good lodging resistance.
Since 20 16, it has been approved or introduced for the record in Shanxi, Anhui, Liaoning, Inner Mongolia, Jilin, Tianjin, Hebei and other provinces. This maize variety has become one of the maize varieties with the highest yield in the central and western regions.
Factors affecting corn yield per mu
1, moisture
Water is the key factor of plant growth and development, and corn is no exception. Lack of water will lead to problems such as leaf withering, slow growth and fruit reduction, so proper irrigation management is very important to improve corn yield per mu.
2. Soil fertility
The contents of nutrients and organic matter in soil have an important influence on the growth and development of maize. Insufficient fertility will lead to slow plant growth, less pollen, less fruit and poor quality.
3. Climatic conditions
The suitable temperature range for maize growth is 20℃~30℃. In this temperature range, plants grow fastest, and sufficient sunshine is also beneficial to the growth of corn. However, if we encounter unfavorable climatic conditions such as high temperature, drought and low temperature, it will affect the growth and development of corn, thus affecting the yield per mu.
4. Planting density
The planting density of corn will affect the growth and development of corn, too dense will affect the ventilation and illumination of corn, and too sparse will waste land resources. Therefore, choosing suitable planting density is beneficial to improve the yield per mu of corn.