Introduction, knot and outcome. If under this simple structure we can tell a story, the 21/22 season has already been introduced just at the end of the year, almost all its knot (in some areas) and only one outcome remains that is increasingly adjusted by high temperatures and lack of water, although the first This year, rainfall was recorded in some regions.
Introduction. When talking about agricultural results in our country, it is inevitable to refer to the fact that hardly any climatic year accompanies producers in the same way, since most of the crops today are planted from the north to Patagonia.
But, in general, we had a good finale in most of the territory, even with pleasant surprises in terms of yields even in lower environments. We started with a relatively good recharge in the areas with little winter rainfall, a situation that led many producers to make the decision to plant wheat. We saw how in most of the wheat lots the fertilization strategy was incorporated as a priority within the sowing strategy. The rains appeared at key moments, accompanying the investment and defining a good season of finale.
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Naked
We were doing well, so well that we almost distrusted the forecast Niña. It seemed suspicious to us that with the small “irrigated” that October and November had been providing us, it would be cut off at once. We started the thick planting with the corn at the beginning of September, even with a little cold, but there was humidity.
We continue in October with the planting of first-class soybeans, still with very good soil moisture and with some pest problems, mainly bolillera, megascelis and pellet bug. Already the scarce rains at the end of November allowed to work quickly in the sowing and almost all the second-class soybean batches could be sown perfectly despite the high volumes of stubble left by the wheat.
In agriculture, producers are used to having twists in the stories of their campaigns and this was no exception. December loomed from the beginning bleak, with batches of days that combined less than 25% relative humidity with temperatures that exceeded 38 to 40 degrees just in the critical periods of some crops.
Some areas of Entre Ríos, the south of Santa Fe and the north of Buenos Aires were left with the corn being delivered. And, although there is a large proportion of lots that are still “holding out”, closer to the southeast of Cordoba and the southwest of Santa Fe, their potential has already been touched.
This combo of high temperatures and lack of water affected not only corn but also soybeans. We visited many lots that had a hard time closing the furrow, with large escapes of weeds that, if the climatic situation is not reversed, their potential will also be greatly diminished despite the fact that the crop is not yet going through its critical period.
Outcome
Some with cast and others with expectations, In 2022 and his Niña is going to close another very heterogeneous campaign, surely in terms of gross yields in the country. The strategies to carry out the cultivation are another important factor of variability in the results that we are going to obtain in the thick 21/22. For example, with the sowing date, from the worst situation of some early corn lots in the northeast of Buenos Aires and the southeast of Santa Fe with respect to the late maize planted in the same area. Maybe there are differences at the end of the movie.
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With the exception of some batches with the presence of nappa, most of the premium soybean batches had been experiencing stress due to high temperatures and low humidity even in the core zone. In the second-class plots we also found problems in implantation, added to the scarce control of weeds that the pre-emergent ones could do due to the high volume of stubble and the scarce rainfall for them to be incorporated.
The scenario worsened due to the lack of growth of the crop that did not close the furrow and left resources for the growth of new weeds that were born quickly, mainly resistant red weeds.
The author is coordinator of the Platform for Territorial Innovation of the East of Córdoba, coordinator of the INTA Marcos Juárez Maize Network and head of AER Corral de Bustos
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