[Comparison in vitro between farm-yard manure and liquid manure (author's transl)].
Spreading of liquid manure in a grassland ecosystem, stable since a long time when treated with farm-yard manure, brings out a great unbalance in the soil. In comparison of farm-yard manure, the liquid manure involves -- a decrease of C and N in the soil, -- a deterioration of the soil structure, -- a dangerous change in the CEC for K+ and Na+, -- an excessive stimulation of the microflora. In brief, through its composition the liquid manure involves a hyperactivity of the microglora. This heterotropic microflora is particularly mineralizing and breaks down the organic matter. The result is a temporary increase in fertility. But this stimulation of the soil life disbalances the eco-system in which -- the pool of organic matter decreases without replacement, -- the content in Ca++ and Mg++ decreases to the benefit of K+ and Na+.
D000383:Agriculture / Q000379:methods*; D002118:Calcium / Q000032:analysis; D002244:Carbon / Q000032:analysis; D005308:Fertilizers; D006863:Hydrogen-Ion Concentration; D008274:Magnesium / Q000032:analysis; D009584:Nitrogen / Q000032:analysis; D011188:Potassium / Q000032:analysis; D012964:Sodium / Q000032:analysis; D012987:Soil / Q000032:analysis; D012988:Soil Microbiology; D014867:Water / Q000032:analysis
D005308:Fertilizers; D012987:Soil; D014867:Water; D002244:Carbon; D012964:Sodium; D008274:Magnesium; D009584:Nitrogen; D011188:Potassium; D002118:Calcium
Comparison in vitro entre l'apport de fumier et de lisier