Every September is a crucial period for corn seed field harvesting and entering the dehydration and drying of the ear. Especially in the special seasons where autumn and winter rains frequently occur, it is particularly important whether the drying method guarantees the timely drying of corn seeds to safe moisture before winter arrives. . Now some seed production enterprises have taken ear drying immediately after ear harvesting. Due to its large investment, high processing cost, and high carbon emissions, it is still difficult to fully realize it at one time; another kind of drying method is a yard (previous place) The mulching film shall be spread flat or directly on the house to be air-opened, and drying methods such as stacking of mesh bags and hanging racks shall be adopted. Over the past few years through experimental observation and comparison, it is believed that the drying of the upper (frame) bed after harvest of corn seed is more suitable for large-scale seed production and seed production companies, especially in the drought-scarring northwestern corn seed production base in China is more suitable to promote practical technology .

Local materials, simple methods The main methods and methods are: site is not limited (sunny ground is better), the use of households more affordable wood sticks or hard stalks in the home's free space from the ground 30 to 40 cm The bed (shelf) warehouse, in the bed (shelf) in the warehouse stacking sun 30 to 40 cm thick corn seed ears. It not only prevents the water in the yard from causing moisture to evaporate, but also accelerates the dehydration and drying. It also facilitates the artificial cover in cloudy and rainy days and greatly reduces the number of drying in the field.

Low-cost, low-cost companies can provide metal mesh, only 3 to 4 square meters per acre seed field, cost about 30 yuan. And can be used continuously for 3 to 4 years, acres of corn planting fields, only invested more than 10 yuan per year; and mechanical drying of the ear, only drying costs equivalent to nearly 0.2 yuan per kilogram of grain, seed yield per kilogram 400 kilograms, per acre The cost needs to be 80 yuan/year. If you recalculate the investment in drying equipment, it is not difficult to see that this is a technical measure for accelerating the dehydration of corn ear with low investment, low cost and simplicity.

Rapid dehydration and good results in 2009 in Zhangye, Gansu Province, after the ear was harvested, the ear was harvested on the same site, the same stacking thickness, and the ear (rack) bed was air-dried. Compared with other methods of drying, the seed moisture was achieved. The time is several days in advance; the concrete results are: 5 to 8 days ahead of the cement yard, 5 to 8 days ahead of the cement yard, 7 to 10 days ahead of the yard, and 6 to 6 days ahead of the soil. 9 days, 7 to 9 days ahead of earth flats. Generally, the effective moisture (14%) of the seed overwintering is achieved after 12 days of drying on the (frame) bed, and the effect is very obvious. Especially in the northwestern arid regions, in order to make full use of the climate features of low rainfall, dry weather, strong sunlight, and large temperature difference between day and night in October, accelerated seed dewatering to prevent seeds from freezing due to high water content after winter and guarantee seed germination rate Advantageous safeguards. According to the analysis, the main reason for this apparent effect is that after the bed starts accelerating the air flow inside the seed pile and the outside world, which promotes the speed of out-diffusion of water in the ear, and the evaporation of the water in the arid area after the ear leaves the surface. Diffusion and air convection are more rapid. At the same time, this measure is more conducive to seed ripening than mechanical drying, as well as the improvement of seed vigor and fineness.

Greenhouse Hydroponic System

Hydroponics is a subset of hydroculture, the method of growing plants without soil, using mineral nutrient solutions in a water solvent. Terrestrial plants may be grown with only their roots exposed to the mineral solution, or the roots may be supported by an inert medium, such as perlite or gravel. The nutrients in hydroponics can come from an array of different sources; these can include but are not limited to waste from fish waste, duck manure, or normal nutrients.

Greenhouse Hydroponic System,Greenhouse A Hydroponics,Greenhouse Flat Hydroponics,Greenhouse Vertical Hydroponics

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