When will Shandong corn mature?
Shandong corn generally matures from the end of August to the middle of September. Because the sowing date of maize in Shandong area is earlier and the growth period is longer, so the yield will be higher.
Corn growing environment
1. Temperature
Maize is a temperature-loving crop, which requires a higher temperature during the whole growth period. The biological effective temperature of maize is 10 ℃. Seed germination required 6 ℃ 10 ℃, which was slower than 10 ℃, 16 ℃ 21 ℃, and the optimum temperature was 28 ℃, and stopped germinating above 40 min. The seedling stage can withstand the temperature of-2 to-3 ℃ for a short time.
2. Moisture
Corn has high plant height and large leaf area, so it needs more water. The optimum precipitation during the growth period of maize is 410-640mm, and drought affects the yield and quality of maize. It is generally believed that the areas lower than 150mm in summer are not suitable for planting corn, but too much precipitation affects light, increases disease, lodging and weed damage, and also affects the improvement of maize yield and quality.
3. Soil
Corn is not very strict with soil. Corn can be planted in chernozem, chestnut soil and sandy loam with a PH value in the range of 6-8.
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Planting method of mountain grape
Planting mountain grape requires cutting or grafting seedlings, and then arrange the planting density. The pruning of mountain grape in winter and summer is mainly based on branches and buds, and the rate of fruit setting can be increased by equipped with pollination trees. Vitis amurensis has poor resistance to downy mildew and prevention in management.
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Camellia florescence
The flowering period of camellia is from January to April. Camellia variety, the general varieties concentrated in spring flowering, each single flower flowering is generally 7 to 15 days. How to raise camellia 1. Soil: camellia is suitable for loose, well-drained acidic soil. Calcareous soil must not be used.
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