Sowing and 70% of the agricultural production input of the fertilizer station, there are mainly three ways: First, the traditional way, two people cooperate, one person opens the hole in the front hoe, one person scatters seeds or fertilizes afterwards, labor intensity is high, and the efficiency is low. (0.5-0.7 mu / day person) shallow fertilizer, low fertilizer interest rate (about 30%); but the method of flushing, dissolve the fertilizer in the water, with the irrigation into the soil, the fertilizer loss is serious, the phenomenon of burning occurs The utilization rate is extremely low (about 20%); the third is mechanical mode, the single leg seeding machine is used by many people (2 to 4 people), the effect is high (3 to 4 mu/day person), and the volume is large (easy to damage crops). The planting plant spacing and the number of granules are not adjustable, the fertilization is shallow (5-7 cm), and the fertilizer utilization rate is low (about 30%). High cost (price 70-120 yuan). The modern on-demand fertilizer application solves the above problems and has declared a number of national patents. It is compact in structure and easy to operate. The amount of each hole is continuously adjustable; 2-3 grains of corn, 3-4 grains of soybean, 10-50g of urea 8-40g compound fertilizer; arbitrary adjustment of depth: 3-5 cm on demand, 6-20 of fertilizer cm. Compared with the appeal method, it has the following advantages: 1. Fertilizer; fertilizer is applied to the optimal range of rhizosphere absorption, fertilizer utilization rate is increased by 40%, 15% higher than traditional fertilization, and 30-40% of fertilizer is saved. 2, labor saving; single operation, complete 4-5 acres per day, can work for six days a day. 3, labor-saving; small size, light weight, upright operation, light and fast application. 4, save money; the price (about 60 yuan) is only half of the daily savings of fertilizer, labor costs, the day can be recovered. 5, scope; applicable to Daejeon, vegetable low, Dapeng, bow sniper orchard, is expected to become an indispensable tool for every farmer.
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