METHOD FOR REPAIR OF INTENSIVE APPLE ORCHARD ON SOILS OF VOLGA-AKHTUBA FLOODPLAIN Russian patent published in 2024 - IPC A01G17/00 

FIELD: horticulture.

SUBSTANCE: invention relates to horticulture, namely to transplantation of trees during repair of intensive apple orchard. Method of repairing an intensive apple orchard on soils of the Volga-Akhtuba floodplain involves planting a seedling in a preliminary prepared pit. Solution is prepared by diluting 1 gram of 4(indole-3yl) butyric acid in 100 ml of ethyl alcohol. Prepared solution is diluted with water at ratio of 1:1,000. Prepared solution is used to saturate natural zeolite with fraction of 0.5-1.5 mm with content of SiO₂ 65-70% in ratio 7:4. A nutrient mixture for the planting pit is prepared by uniform mixing of sapropel of the Volga-Akhtuba floodplain and saturated natural zeolite with SiO₂ content of 65-70% at ratio of 3:1. During garden planting works planting pit with depth of 50-60 cm is filled with nutrient mixture in root system growth zone for 2/3 of its part and 3-year-old seedling of spur-type fruiting is planted in it, excluding varieties mixing in row. During the vegetation period, differentiated drip irrigation of seedlings is carried out through additionally installed droppers, which are brought to holes of seedlings. Dosed pre-irrigation threshold of soil moisture in the calculated layer is maintained within range of 90-95% in the first year, 85-90% in the second year, 80-85% in the third year.

EFFECT: increasing survival rate of seedlings and their growth with simultaneous improvement of phytosanitary condition of soil in the planting pit of the seedling.

2 cl, 4 tbl