Introduction to Rip 909 corn variety

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1. Introduction to Rip 909 corn variety

2. Yield performance of Rip 909 corn variety

3. Cultivation technology of Rip 909 corn variety

4. Prevention and control of pests and diseases of Rip 909 corn variety

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Rip 909 corn variety is a mid-late maturing variety with a growth period of about 129 days. The fruit is cylindrical in shape and the rachis is pink. The ear length is 19.8 cm, and the ear rows are about 18 rows. The best time to sow is between late April and early May in spring. When planting, apply base fertilizer first and top-dressing fertilizer later to ensure sufficient nutrients. Leave 4,000 to 4,500 seedlings per acre, not too dense. In addition, pay attention to the prevention and control of head smut and stem rot.

1. Introduction to Rip 909 corn variety

1. Introduction to Ripu 909 corn variety

Ripu 909 corn variety is a medium-late maturing variety with a growth period of about 129 days. Its plant shape is semi-compact, with a total number of leaves of 21, a plant height of 290 cm, and a panicle position of 105 cm. The anthers are yellow-green and the filaments are light pink. The fruit is cylindrical in shape and the rachis is pink. The ear length is 19.8 cm, and the ear rows are about 18 rows. The seeds are yellow, the weight of 100 seeds is 35.8 grams, and the seed yield is 87.7%.

2. Yield performance of Rip 909 corn variety

Rip 909 corn variety had a yield of 960.6 kilograms per mu in 2014 and 898.8 kilograms per mu in 2015. The two-year average yield was 929.7 kilograms per mu. In the 2016 production test, the average yield per mu was 885.4 kilograms.

3. Cultivation technology of Rip 909 corn variety

The best sowing time of Rip 909 corn variety is between late April and early May in spring. When planting, base fertilizer should be applied first, and 40 kilograms of nitric acid phosphate fertilizer should be applied to the bottom of the acre. Only when the soil is fertile can germination be better later. When planting, you should also pay attention to the density. Leave 4,000 to 4,500 seedlings per acre, not too dense. During the peak growing season, the demand for nutrients is large and top dressing is required. Apply 20 kilograms of urea per acre.

IV. Prevention and control of pests and diseases of Rip 909 corn variety

Rip 909 corn variety is susceptible to head smut and stem rot. Prevention and control work must be done well and pesticides should be sprayed in time. Fertilizer should be sprayed regularly during the growth period. If the nutrients are sufficient, it will grow more vigorously, thereby improving disease resistance. Once seriously infected plants are found, it is recommended to remove them promptly to avoid infection.

2. Yield performance of Rip 909 corn variety

3. Cultivation technology of Rip 909 corn variety

4. Prevention and control of pests and diseases of Rip 909 corn variety

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