As
will be apparent to those skilled in the art, using the present disclosure,
various liquid fertilizers may be used. Commercially available fertilizers are
often identified by an N-P-K or N-P-K-S number.
N-P-K-S-Düngemittelidentifikatoren be labeled according to the contents of four
macronutrient elements, namely nitrogen (N), phosphorus (P), potassium (K) and
sulfur (S). The mass fraction (in percentage) of nitrogen and sulfur is
directly indicated. However, potassium is reported as potash (potassium oxide K
2 O) and phosphorus as phosphorus pentoxide (P 2 O 5), the anhydride of
phosphoric acid. Examples of NPKS macronutrient fertilizers that can be used
include 10-34-0-0 (ammonium phosphate solution), 32-0-0-0 (ammonium nitrate
solution and urea), 28-0- 0-0 (urea-ammonium nitrate solution), 12 0-0-26
(ammonium-liquid) 20-0-0-0 (urea-ammonium nitrate solution), 3-18-18-0 (urea,
ammonia, ammonium hydroxide, phosphoric acid (potassium hydroxide), 20-0-0 -5
(urea-ammonium sulfate solution), 0-0-15- 0 (solution of potash fertilizer),
7-21-7-0 (urea, ammonium sulfate, ammonium polyphosphate, ammonium nitrate,
potassium chloride solution) and 0-0- 13-0 In one embodiment, the liquid
fertilizer is selected from 32-0-0-0, 28-0-0-0, 10-34-0-0, 12-0-0-26, 3- 18-18-
According to yet another embodiment, the liquid fertilizer is 10-34-0-0 The use
of 10-34-0-0 may be advantageous because it may be lighter compared to other
liquid fertilizers, smaller SAP Queue sizes In addition, slow-release nitrogen
fertilizers may be included in the SAP liquid fertilizer suspension. Examples
of slow-release nitrogen fertilizers include those sold under the trademarks
Nitamin ™ and Nsure ™. In one embodiment, a soil improvement may comprise a
starch based SAP product with a 10-34-0-0 liquid fertilizer and a slow release
nitrogen fertilizer. It is believed that the ability of SAP products to swell
and expand is affected by the charged species present in the liquid fertilizer
solution (i.e. cations and / or anions). Therefore, when SAP products are
placed in a concentrated cationic / anionic solution, their absorption capacity
is temporarily reduced compared to a solute-free environment. After
introduction into the soil, the absorption capacity of the SAP product is
always temporarily reduced compared to a solute-free environment because the
SAP product always occurs with the electrolyte fertilizer solution in the
interaction and at the same time. liquid fertilizer trapped in the polymer
matrix. The SAP product also acts as a controlled release mechanism for the
fertilizer so that rain or irrigation does not wash the fertilizer from the
root zone, but maintains the presence of fertilizer for a longer period.
Without being bound by theory, it is believed that the impregnated fertilizer
salts can be polarized to ionic groups charged with the polymer matrix, which
are oriented to hydrogen bonding groups or are present in pores in the main
water. . The displacement of the fertilizer salts of the polymer in the
surrounding soil can be controlled by mass transfer resulting from a
concentration gradient and a Brownian molecular motion. When the fertilizer
salts begin to leave the polymer matrix, the absorbance of the SAP product
begins to return to its normal potential and provides a water retention
function near the root zone. As described above, the SAP product makes the
starch based on earlier seed germination and / or flowering, decreased
irrigation requirements, increased propagation, increased Plant growth and
production, increased crop quality, reduced soil cracking, yield increase and
reduction of original time. The liquid fertilizer / SAP suspension described
above may also contain various trace elements, depending on the type of
application, such as agriculture, horticulture, turf, etc., soil conditions,
conditions weather and other factors that are recognized by the professionals
of this description. Examples of trace elements may be present in salt form or
otherwise and may include elemental components of a multivalent cation solution
useful in agriculture containing magnesium (Mg), iron (Fe), manganese (Mn),
boron (without limitation) include. B), calcium (Ca), copper (Cu), molybdenum
(Mo), nickel (Ni) and zinc (Zn). The presence of a multivalent cation solution
may be advantageous because it induces a cation exchange within the fertilizer
/ SAP suspension, possibly