Exhibitions, articles, reports |
The calculation of application rates
The data presented below are very interesting and they will allow you to come to important conclusions.
Our experts together with the institutes of the Academy of Sciences of Belarus carried out work on the assessment of the efficiency of work with trace substances.
Before starting calculations read the information about the influence of organic fertilizers on elemental balance.
The average content of trace substances in litter manure is 75% moisture content of manure
According to the Reference Book of agrochemist. Co-author: V. V. Lapa, etc. - Minsk: Belarusian Science, 2007. – 389p.
|
Litter manure
|
Fe*
|
Mn
|
Zn
|
Cu
|
B
|
Mo
|
Co
|
|
cattle
|
150
|
112,5
|
38,3
|
8,4
|
3,8
|
0,2
|
0,3
|
|
porcine
|
135
|
102,6
|
68,7
|
12,7
|
3,1
|
0,2
|
0,3
|
|
equine
|
120
|
91,5
|
36,0
|
6,2
|
3,1
|
0,2
|
0,3
|
* - The data on the content of iron in litter manure are preliminary and they are specified at the moment.
The question of the use of organic fertilizers in calculations remains open. There is no consensus on taking it into account in the calculation or not. The difference of opinions concerning this issue apparently is related to the fact that, according to the degree of the decomposition of manure four its stages are distinguished. Accordingly,
the content of mobile forms of trace substances changes at a constant gross content. You can leave your opinion about it
here.
The calculations that can be made below are true for green mass and for the increases of productivity of desired products. Out of five years work experience (more than 100 experiments were conducted) more reliable data are obtained at the calculations of increases in particular. The size of the increases of target products against application of full doses of NPK is made by cereals (5-10%), technical (15-20%), vegetables (20-30%), and fruit (40-50%). During soil treatment without the application of NPK or small doses of it the increases will be: cereals (10-20%), technical (20-30%), vegetables (30-50%), fruit (50-70%). It isn't also recommended to calculate the application rate based on the general productivity because of the impossibility of application of big doses of fertilizer. It is economically (expensive) and physiologically (you can burn the plant) inexpediently.
The data presented below were obtained in December 2011. The compositions of fertilizers KompleMet were developed in 2003-2008. That is why a disproportionate conformity of carrying out and application of trace substances is observed. Nevertheless, it is nessesary to consider good results that were got in the years shown above during the cultivation by fertilizers KompleMet.
At the same time new experiments will necessarily be laid using new fertilizers in accordance with the data obtained from the FAO.
The data in the calculator are updated weekly.
For the calculation, fill in the fields ut infra (0 in the table of the removal of trace substances means the absence of data). The table of the removal of trace substances by basic agricultural crops of which are rape and flax (W. Bergman) according to the FAO (Food and Agriculture Organization of the United Nations), you can download here.
To simplify the calculation of the increase of productivity 1 centner/ hectare = 1 kg / hundred part = 100 g / square meter
To simplify the amount of dosages of fertilizers 1 liter / ha = 10 ml (about 12 gram) / sq.m = 0.1 ml/ square meter
The calculator of water stability
Download catalog of fertilizer
