MULTAN : Agriculture experts have urged growers to begin maize sowing from Jan 15 to get better yield in spring season. In a release issued by the media liaison unit of the Punjab Agriculture Department, experts said that fertile and soft land be selected for sowing and hard crust wherever present must be broken by deep ploughing. Cultivators be utilized for one time ploughing before 3 to 4 times ploughing by ordinary plough with a ‘Suhaga’ i.e. a traditional land levelling wooden ladder attached with it.