What changes in nutrient uptake at different growth stages of cotton

The absorption of nutrients in cotton is different at different growth stages. Generally, the peak of nitrogen absorption occurs in the flowering and bolling stage, and the absorption can reach more than 60%, which is a significant increase over the seedling and bud stages. It is nitrogen, phosphorus and potassium nutrition. The maximum efficiency period, therefore, to re-apply available nitrogen fertilizer in flowering and bolling period. Normally grown cotton plants absorb more nitrogen and potassium in the early and middle stages, and more phosphorus is absorbed in the middle and late stages. Therefore, the supply of potassium must be ensured in the early and middle stages, and the soil must be kept in a large capacity for supplying phosphorus in the middle and later stages. Different fertilization levels have a significant effect on the dynamic changes of nutrient absorption of cotton plants. The amount of fertilizers is large, and the total amount absorbed is more. In the middle and later stages, the growth of cotton is more prosperous and the nutrients are absorbed more; the amount of fertilizer is less and the total amount of absorption is less. There is a relative increase in absorption in the early stages.

Deep Hole Plate

Preservation tubes are swabs with disposable virus sampling tubes to collect DNA tests for disposable nasal flocking sterile medical transport.

swabs with disposable virus sampling tubes , to collect DNA tests for disposable nasal flocking sterile medical transport.

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