Abstract
Differences in leaf, stem and head dry matter production of grain sorghum crops grown under sprinkler and furrow irrigation, and supplied with four levels of nitrogen, could be attributed primarily to differences in the sizes of their leaf canopies, resulting in marked differences in the amount of light energy intercepted by them. Only small differences were observed in their efficiency of utilisation of intercepted light energy for the production of dry matter. At the highest N level (340 kg N ha −1 ) under furrow irrigation high seedling mortality resulted in reduced plant density and light interception. This contributed to the low response of grain yield to N in this treatment compared to a strong response under sprinkler irrigation.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
