1、 Introduction of Ruipu 909 Maize Varieties

Ruipu 909 corn variety belongs to the middle and late maturing variety, with a growth period of about 129 days. Its plant shape is semi compact, with a total number of 21 leaves, a plant height of 290 cm and a spike position of 105 cm. Anthers yellow green, filaments light pink. The ear is tubular and the cob is pink. The ear length is 19.8 cm, and the ear rows are about 18 rows. The grain is yellow, the weight of 100 grains is 35.8g, and the seed yield is 87.7%

2、 Yield performance of Ruipu 909 Maize Variety

Ruipu 909 corn variety produced 960.6kg per mu in 2014 and 898.8kg per mu in 2015, with an average yield of 929.7kg per mu in two years. In the production test in 2016, the average yield per mu was 885.4kg

3、 Cultivation techniques of Ruipu 909 Maize Variety

The best sowing time of Ruipu 909 maize variety is from late April to early may in spring. When planting, base fertilizer should be applied first, and 40 kg of nitric acid and phosphorus fertilizer should be applied at the end of each mu, so that the soil can be fertile and germinate better in the later stage. Pay attention to the density when planting. Leave 4000 to 4500 seedlings per mu, not too dense. There is a large demand for nutrients in the peak growth season, so topdressing is required. Apply 20 kg of urea per mu

4、 Pest control of Ruipu 909 Maize Variety

Ruipu 909 corn variety is easy to be infected with head smut and stem rot. it is necessary to do a good job in prevention and control and spray drugs in time. During the growth period, fertilizer should be sprayed regularly. If the nutrients are sufficient, its growth will be more vigorous, which can improve the disease resistance. Once the plants with serious diseases are found, it is recommended to remove them in time to avoid infection