Is pre-sowing irrigation needed for ZT wheat?
Normally, when wheat crop preceding rice is seeded timely, the residual soil moisture is sufficient for germination to take place. If residual soil moisture is less, it is better to seed in dry soil at shallow depth and immediately go for a light irrigation. Pre-sowing irrigation help weeds to germinate ahead of main crop, make shallow tillage necessary for control of weeds. If weeds are no problem and there is still time for seeding, pre-irrigation can be applied.