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First irrigation is considered most important for better yield of wheat. According to agricultural experts, watering is necessary 21 to 25 days after sowing. During this period, even a little carelessness or excess of water can turn the crop yellow and reduce production.
The first irrigation in wheat should be done about 3 weeks after sowing, when the main roots are forming under the ground. If there is lack of moisture at this time, then bud break in plants is reduced, which directly affects the yield.
The first irrigation should always be light. Filling the field with too much water can be harmful. If water accumulates, the plant’s roots are unable to aerate and the leaves begin to turn yellow, stunting initial growth.
Top dressing of urea must be done immediately after irrigation or at the time of flowering. After watering, the soil remains moist, due to which nitrogen easily reaches the roots. Spraying about 40–45 kg of urea per acre helps in increasing the number of buds.
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Weeds grow rapidly when there is moisture in the soil after irrigation. 2–4 days after the first irrigation, when the feet start touching the ground, herbicides should be sprayed. Due to this, the crop does not have to compete with weeds for nutrients and the main crop remains healthy.
In sandy or light soil, irrigation is required on 20–22 days, whereas in heavy or clay soil it can be postponed till 25–28 days. The farmer should manage water only after seeing the moisture absorbing capacity of his soil, so that the roots do not rot.
If there is zinc deficiency in the soil, then zinc sulphate should be used with the first irrigation. It helps in increasing chlorophyll in plants and keeping them green. Apart from this, if yellowness is seen in the crop, spraying of micronutrients can also be done on the advice of experts.
