Natural fertilizer and soil-former.

Field research

Field researches were carried out within international project «The amelioration of desert lands by belorussian peat/sapropel» with participation of the Ministry of Agriculture and Land Reclamation of Egypt, Chiba Institute of Technology Japan and Belorussian Academy of sciences.

Before starting an experimental work the lot   (60 m X 130 m)   was leveled according to the natural slope. This land has never been under cultivation, not observed any plant activity. The characteristic of sand is presented in table 1.

Table № 1

Capacity (cmol/Kg)Density (g/cm3)Maximum water Holding capacity (%)Permeability coefficient (10-3cm/s)
Ion concentration (cmol/Kg)
pHEC (KCI)MS/cmNa+K+Mg2+Ca2+Cl-HCO3-NO3-SO428,444790,320,110,060,930,250,340,001,08Cation exchange

The irrigation water was pumped from the well with depth 100 m. The characteristics of water were presented in table 2.

Table № 2

pH(KCI)EC(ms/cm)Total soluble salts (ppm)Sodium adsorption ratio (cmol/l)1/2
Ion concentration(cmol/Kg)

The irrigation water was possessed with highly enough values of pH and EC. There were made the experiments on growth of green cabbages and wheats. There were used three types of fertilizer:

  • A – Irish peat (peat moss) – is the most popular type of fertilizer in Egypt
  • B – Egyptian compost
  • C – the fertilizer based on sapropel

At the reduction of watering levels there were observed the decrease crop in all editions. When processing by fertilizer on the basis of sapropel decrease in a crop was significantly lower, than in other options. It should be noted, what even at 4 mm/day of water supply, crop level on sites about fertilizer on the basis of sapropel was 3,7 times higher, than on sites fertilized by the Irish peat moss at 8 mm/day of watering, and 1,4 times above, than on sites fertilized by the Egyptian compost at 8 mm/day of watering.