Despite favorable conditions, a farmer’s crop can fail to give good yield due to any or some of the following reasons:
(i) The soil was not ploughed properly. – Improper ploughing restricts the penetration of the roots of the crop plants deep into the soil. The consequences could be failure of plant before maturation.
(ii) Improper sowing of seeds – Sometimes the seeds are not covered after sowing is over. This makes the seeds prone to attack by rodents and birds. If a significant amount of seeds are damaged in this manner, it has a direct negative impact on the crop yield.
(ii) Flaws in irrigation – Sometimes despite favorable climate, under- or over-irrigation also leads to crop failure. In under-irrigation, the field remains comparatively dry and the crops wilt. In over-irrigtaion, the field becomes water-logged resulting in crop failure.
(iii) Competition from weeds – If weeds are not removed properly, they compete with the crop plants for nutrition and water. Hence a reduction in the crop yield is observed.
(iv) Loss in harvesting – If harvesting is not done properly, a significant amount of grain seeds are lost along with the chaff. This results in a lower yield.