After the sweet potato tubers enter the expansion period, they should pay close attention to the crack fertilizer. On the one hand, it satisfies the nutrients needed for the expansion of potato chips, while preventing premature senescence of stems and leaves, enhancing photosynthesis and increasing nutrient accumulation. Tests have shown that sweet potato can increase the yield by 25% to 30%. The time for the application of crack fertilizer in summer sweet potato is generally carried out when cracks appear on the surface. The specifics should be based on the growth of the summer potato and the soil quality. For example, in the early stage, the fertilizer is insufficient, the soil layer is shallow and the plant growth is poor, and the field can be applied as early as possible; the amount of topdressing can be applied to the decomposed human and animal manure 800-1000 kg per mu, or 6-7 kg of urea. 600 kg, sloping cracks. If the field with sufficient fertilizer in the early stage and strong plant growth can be applied less or only soil fertilizer and potassium fertilizer, no nitrogen fertilizer. Immediately after topdressing, the soil was plucked, and the soil was crushed in the trench to be cracked at the crack in the surface.
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】
Other Camping Light,Rechargeable Lantern,Led Kerosene Lamp,Tent Camping Lantern
NINGBO ZHENGUO INTELLINGENT LIGHTING CO.,LTD , https://www.intellingentlighting.com