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目前显示的是 六月 26, 2018的博文

How to build soil crumb structure by yourself?

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The main measures to build soil crumb structure





1,Intensive cultivation,increase use of organic fertilizerIntensive cultivation makes the topsoil loose.Although the formed granules are not water-stable,they also play a role in regulating soil porosity.The continuous application of organic fertilizer can promote the formation of water-stable aggregates,and the degree of agglomeration of aggregates is high,various pores are distributed reasonably,and soil and fertilizer can be maintained and improved.
2,Rational rotationAnnual or perennial grasses or leguminous crops,which grow robustly and have developed strong root systems,can promote the formation of soil aggregates.Returning straw,planting green manure,crops and green manure rotation,and paddy crop rotation are all beneficial to the formation of soil crumb structure.
3,Reasonable irrigation,timely cultivationFlood irrigation can easily damage the soil structure,so that the soil is compacted,and timely cultivating tillage after irrigati…

What’s the Crumb structure in soil?

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First of all,let us understand the soil structure.The soil is a porous system.It consists of solid,liquid and gas three-phase substances.The solid material in the soil includes both mineral and organic matter.The liquid part refers to the moisture of the soil,which is preserved and moved between the pores of the soil and is the most active part of the soil. The gas part refers to the air of the soil and it is filled with pores that are not occupied by moisture.The pores are divided into three types: large,medium,and small.Among them,the large pores are called gas-filled pores.Large pores should not be too much,water is easy to run off if too much,and the pore size of small pores is too small,which is not conducive to the breathability and rooting of plants. Medium pores are also called water-holding pores.The more midium pores are more suitable for the growth of crops.Just like our human skin,the better the water retention and air permeability,the healthier it is. Crumb structureis a typ…