What to Do When Wheat Seedlings Emerge Unevenly? Causes and Remedies

@#@245@#@In the early stage of sowing and emergence, if a wheat field is found to have uneven emergence resulting in an insufficient basic seedling population, the following measures can be taken according to the emergence conditions.

I. Timely reseeding. To ensure a full stand, check the seedlings promptly after the wheat has fully emerged. For wheat fields with uneven emergence that have caused serious missing hills and broken rows, reseed as soon as possible in the early emergence stage using seed of the same variety.

II. Transplant from dense areas to fill sparse ones. At the three-leaf stage of wheat, for wheat fields where emergence is generally good across the field and only a few places have missing hills or few seedlings, you can transplant seedlings with soil from dense areas within the same field to fill the sparse ones, and water with rooting water after transplanting. When transplanting, the crown should not be buried and the white stem base should not be exposed; after covering firmly with soil, water them and apply an appropriate amount of fertilizer to help the seedlings recover.

III. Water supplementation for drought. For missing seedlings caused by drought, water promptly as a remedy, once a day for 3-5 consecutive days, to promote normal growth of wheat seedlings, strong seedlings, and more tillers. For seedlings damaged by improper pesticide application, water 2-3 times as a remedy, and loosen the soil after watering.

IV. Topdressing to promote vigor. For wheat fields where emergence in each hill is relatively uniform but the basic seedling population is insufficient, apply seedling fertilizer early and appropriately during the emergence to three-leaf period, mainly with quick-acting nitrogen fertilizer. This can promote early tillering and strong tillers, optimize individual plants, achieve strong growth and early development in winter, and attain high yield.

V. Remove part of the covering soil. For missing seedlings caused by sowing too deep, remove part of the covering soil, then combine with irrigation and intertillage to improve soil aeration and promote lateral root development.

VI. Control diseases and pests. The main diseases and pests commonly occurring before winter in wheat are root diseases and underground pests. Control measures should be taken promptly to eliminate diseases and pests so that weak wheat seedlings can recover into strong seedlings as soon as possible.

VII. Prevent salt damage. For wheat fields with missing seedlings caused by salt damage, intertill and loosen the soil promptly to reduce surface evaporation and prevent salt return. Use methods such as irrigation to wash salt or ditching to drain salt to reduce soil salinity.