In the Sughd Region, repeat cropping can be successfully practiced not only in July but also in August. It is considered one of the most effective ways to improve the efficiency of agricultural production.
In the context of climate change and the growing demand for food, the development of repeat cropping plays an important role in ensuring food security and increasing farmers' incomes.
Due to the relatively long warm season in the Sughd Region, it is possible to obtain two, and in some cases even three, harvests from the same plot of land. Therefore, establishing repeat crops after harvesting wheat, barley, early potatoes, and other early-maturing crops is of great practical importance.
Repeat cropping increases the efficiency of land and water use, boosts the production of vegetables, forage crops, and legumes, improves soil fertility, reduces weed infestation, and enhances farm profitability.
The Sughd Region has a continental climate with hot and dry summers. Air temperatures in July and August frequently reach +35 to +40°C or even higher. In most districts, the frost-free period exceeds 200 days, creating favorable conditions for cultivating a wide range of crops as repeat plantings.
To achieve high yields, the soil should be prepared as quickly as possible after harvesting the main crop. Delays in sowing can significantly reduce crop productivity.
After the first harvest, crop residues should be removed, followed by plowing to a depth of 20–25 cm. Before sowing, organic and mineral fertilizers should be applied according to the condition and fertility of the soil.
If soil moisture is insufficient, a pre-sowing irrigation (moisture-replenishing irrigation) should be carried out to ensure rapid and uniform seed germination.
Under the conditions of the Sughd Region, the following crops produce good results when sown in July and August:
Legumes: forage pea (for green fodder), green bean (snap bean);
Vegetable crops: turnip, radish, radish (small red radish), coriander, dill, green onion, and lettuce;
Forage crops: maize for green fodder, sorghum, millet, and others.
The choice of crop depends on the remaining length of the growing season, irrigation availability, and market demand.
Leguminous crops are among the best options for repeat sowing. Their growing period lasts 60–80 days, allowing them to mature before the onset of autumn frosts. Besides producing good yields, legumes improve soil fertility by fixing atmospheric nitrogen through symbiotic nitrogen-fixing bacteria, thus creating favorable conditions for higher yields in the following season.
Maize, sorghum, and millet are among the best crops for green fodder production because they produce a large amount of green biomass within a short period.
In August, farmers are advised to sow turnip, radish, small red radish, coriander, lettuce, and dill. These crops have a short growing season, produce high-quality yields, and are in strong market demand.
During cultivation, it is important to maintain adequate soil moisture, apply fertilizers in a timely manner, and keep fields free from weeds.
Since temperatures remain high during July and August, providing sufficient irrigation is essential. The first irrigation should be carried out immediately after sowing. Subsequent irrigations should be applied every 7–10 days, depending on soil moisture and crop water requirements.
Under current conditions, water-saving irrigation methods, particularly drip irrigation, are considered the most efficient.
To obtain high yields, an appropriate fertilization program is essential. Phosphorus and potassium fertilizers should be applied before sowing, while nitrogen fertilizers should be used as top dressing during the growing season. The use of modern foliar fertilizers also contributes to higher yields and improved crop quality.
In addition to mineral fertilizers, the application of well-decomposed manure, compost, and other organic fertilizers is recommended.
Special attention should be paid to the occurrence of pests and diseases during the repeat cropping period. Regular field monitoring should be conducted, and, when necessary, integrated plant protection measures—including agronomic, biological, and chemical methods—should be applied.
Observing proper crop rotation and using high-quality seed significantly reduce the spread of diseases and increase crop resistance to pests.
Repeat cropping offers numerous economic and agronomic advantages, including:
efficient use of irrigated agricultural land;
increased agricultural production;
higher farm income;
improved soil fertility;
better provision of green fodder for livestock;
reduced weed infestation;
more efficient use of irrigation systems and agricultural machinery.
