Special sulfur and resin double-coated humic acid controlled-release fertilizer suitable for culturing potatoes in arched shed

Abstract

The invention discloses a special sulfur and resin double-coated humic acid controlled-release fertilizer suitable for culturing potatoes in an arched shed. The fertilizer is characterized by comprising the following components in percentage by weight: 80 to 120 percent of resin coated urea, 100 to 150 percent of sulfur coated urea, 75 to 125 percent of diammonium phosphate, 100 to 160 percent of potassium sulfate, 400 to 560 percent of humic acid controlled-release compound fertilizer, and 50 to 70 percent of boric magnesium fertilizer. Compared with the prior art, the special sulfur and resin double-coated humic acid controlled-release fertilizer suitable for the potatoes is compounded by using the nutrient release property of a sulfur and resin double-coated fertilizer and the controlled-release synergistic effect of humic acid on nutrients according to the nutrient absorption law of the potatoes; and good fertilization and absorption effects are ensured by compounding a certain amount of medium and trace elements and combining release control of the nutrients.

Description

technical field [0001] The invention relates to a slow / controlled-release fertilizer technical field, in particular to a sulfur-added resin double-film humic acid slow-controlled release fertilizer suitable for potato cultivation in arch sheds. Background technique [0002] Potato is rich in nutrition and is an important food and vegetable crop with high nutritional value and medicinal value. Potatoes can be cultivated in arch sheds in early spring, which can be marketed one month earlier than in the open field. The appearance and quality of the potato pieces are better than those cultivated in the open field. The output value per 1 / 15 hectare can reach 3,300 yuan. Potatoes are cultivated in early spring with double-film covering in small arch sheds, germination is accelerated in January, and they can be on the market in early and mid-May. The yield is high and the economic benefits are remarkable. [0003] Potatoes form a large number of stems, leaves and stems during t...

AI Technical Summary

Problems solved by technology

Nitrogen and potassium fertilizers are volatile and lost, while phosphorus fertilizers applied to the soil will be quickly absorbed and fixed by the soil, with poor mobility

In order to maximize the yield, too much ordinary compound fertilizer is often applied, which will not only increase the investment of farmers in fertilizer, but also have an adverse effect on the quality of potatoes

Especially when too much phosphorus fertilizer is applied, because the main function of phosphorus fertilizer is to enhance the respiration of crops, if the respiration is too strong, the material accumulation will decrease accordingly, and the yield and quality of potatoes will also decrease accordingly.

At the same time, insufficient use of medium and trace element fertilizers will also affect yield and quality