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The aggregate structure of soil plays an important role in soil fertility, and the fine aggregate structure generally has three properties: general size, too large or too small are not conducive to the formation of appropriate void ratio, multi-stage void, large void can be aerated and permeable.Small void water and fertilizer conservation has certain stability, namely water stability, mechanical stability and biological stability. The relationship between good aggregate structure and soil fertility is mainly manifested in the following aspects: adjusting the contradiction between soil moisture and air, coordinating the contradiction between soil nutrient consumption and accumulation, and stabilizing soil temperature.Adjusting soil temperature and thermal condition, improving soil tillage, is conducive to the extension of crop roots.
Parameter
Sieve diameter is 100mm, check sieve aperture: 2mm, 1mm, 0.5mm, 0.25mm, 0.106mm(5mm, 3mm, 0.053mm are optional, users can also configure other standard sieve with aperture according to the needs of the experiment)
Vibration frequency :30 times/minute (1-40 times/minute adjustable, digital display, very important for experimental data),
Vibration range: 40mm(up and down stroke),
Bucket :4, made of 304 stainless steel, 4 sets of stainless steel standard sieve (10 cm in diameter)
Voltage: 220 v
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