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Millet |
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Materials used in this chapter were published in the book Biopesticide Albit
for increasing yields and protection of agricultures against diseases, A.K. Zlotnikov,
Ed. Prof. À. Melkumova. All-Russia Institute of Plant Protection, Russia, 2006.
Influence of Albit on millet was examined in 7 field trials in 2 regions of Russia
(Saratov and Oryol oblasts). Trials were carried out in 1999-2004 by All-Russia Institute
of Leguminous and Groat Crops, Agricultural Scientific Institute of South-East, and Saratov
Regional Plant Protection Station on millet varieties Krupnoskoroye, Blagodatnoye,
Saratovskoye-10, Saratovskoye-6 and Saratovskoye-8. For many years, Albit
has been successfully used on millet in agricultural practice of farms of Saratov oblast.
Averagely, according to results of all performed trials, treatment with Albit provided
yield increase of 1.4-6.2 centners/hectare over control (3.5 centners/hectare
on average). This yield increase is due to increase of: seed number from one plant by 9-17,
weight of 1000 seeds by 0.21-0.59 g, weight of seeds from one plant by 0.15-0.4 g.
In the conducted field trials economical or biological effectiveness of Albit was not
inferior to that of formulationsbased on benomyl, carboxin and thiram.
Biological efficiency (BE) of Albit against head smut of millet is just 2-50%, that
obviously is not enough for effective control of this disease. On the other hand, as
it was found by number of scientific institutions, presowing seed treatment of millet
with combination of halved dose of chemical protectant and Albit provides total (100%)
disinfection of seeds from smut, that considerably decreases cost of treatment
(Table 13). Thus, Albit can be effectively used for
presowing seed treatment of millet against smut in combination with 50% decreased
application rates of chemical fungicides.
Application recommendations. It is recommended to perform presowing
seed treatment (50 ml/tonne of seeds) and foliar spraying at the EC stage 20-29
(40 ml/hectare). Presowing treatment of 1 tonne of millet seeds costs 110 roubles or
4.4 USD, (the hectare rate is just about 3 roubles (0.12 USD); cost of foliar spraying
is 88 roubles (3.52 USD)/hectare.
Presowing seed treatment with Albit provides efficient plant
growth stimulation in early stages of development. It is especially important,
because unlike other crops millet seed contains few nutrients and millet germs
is very sensitive to different environmental factors. Presowing treatment increases
germination by 5.7-7%, development of rootage by 7-20%, that, in turn, increases
water supply and drought resistance of plants.
Though stimulating influence of presowing seed treatment is observed during all
vegetation period, the most efficient type of millet treatment is foliar
spraying. It increases efficiency of presowing seed treatment approximately
in 2.5 times and can be used separately without preceding seed treatment. Foliar
spraying increases drought resistance, provides growth of well developed panicle,
increases panicle length (approx. 1.5 fold), increases number and weight of seeds
from one plant, weight of 1000 seeds.
Application of Albit on millet is very economically efficient.
According to reports of All-Russia Institute of Leguminous and Groat Crops, extremely
low sowing rates of millet (20-30 kg/hectare) take negligible hectare rates and seed
treatment expenses – about 10 roubles (0.4 USD)/hectare. However, yield increase due
to seed treatment with Albit was 0.25 tonnes/hectare in 2003, that is equivalent to
1250 roubles (50 USD) of profit. Subtracting expenses of the harvesting and transportation
of this additional yield, the net profit of albit application on millet is 1100 roubles
(44 USD) per hectare. In other words, each invested rouble brought 110 roubles of profit.
According to Agricultural Scientific Institute of South-East (2004), foliar spraying with
Albit provided net profit of 636 roubles (25.5 USD) per hectare, whereas presowing seed
treatment provided net provit of 283 roubles (11.32 USD) per hectare. However, due to low
cost of hectare rate of Albit presowing treatment, its profitability was 8600%, whereas
that of foliar spraying was 960%. Thus, foliar spraying with Albit provides maximal agricultural
efficiency (yield increase), whereas presowing seed treatment provides maximal economical one.
Profitability of presowing seed treatment with chemical standard fungicide based on benomyl
was 1610%, whereas profitability of treatment with Albit + halved dose of benomyl-based
fungicide was 5300%.
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