During the whole growth period of the potato, the types and quantities of nutrients required are different due to different stages of growth. At the seedling stage, there is little absorption of fertilizer, and the amount of absorption in the flowering stage increases rapidly, reaching the peak at the beginning of the potato, and then the amount of fertilizer is drastically decreased. The three factors of nitrogen (N), phosphorus (P2O5) and potassium (K2O) were absorbed in each growth period. According to the percentage of total fertilizer absorption, the germination to emergence period were 6.0%, 8.0% and 9.0%, respectively, and the seeding period was 38.0. %, 34.0%, 36.0%, and the potato-forming period was 56.0%, 58.0%, and 55.0%. Among the three factors, potato has the highest absorption of potassium, followed by nitrogen and phosphorus. According to the test, for every 1000kg of tubers produced, it is necessary to absorb 5-6 kg of nitrogen, 1-3 kg of phosphorus pentoxide, and 12-13 kg of potassium oxide.
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】
Grease GUN
SUZHOU CREATION SPACE INTELLIGENT TECHNOLOGY CO.,LTD , https://www.pkanglegrinder.com