Optimizing Row Spacing for Direct Seeded Aerobic Rice under Dry and Moist Fields
Muhammad Ishfaq1*, Nadeem Akbar1, Imran Khan1, Shakeel Ahmad Anjum1, Usman Zulfiqar1, Muhammad Ahmad1, Mumtaz Ahmad2 and Muhammad Umer Chattha1
1Department of Agronomy, University of Agriculture, Faisalabad-38040, Pakistan; 2Research and Development Officer, Engro Fertilizers, Seed Business, Pakistan.
[email protected]
Figure 1
a) Maximum, minimum and average temperature (ºC), b) Rainfall (mm), c) Relative humidity (%) and d) sunshine duration (h) over the growing period of direct seeded rice.
Figure 2
Effect of soil moisture conditions at sowing and row spacing on (a, b) time to start emergence, (c, d) 50% emergence time, (e, f) mean emergence time and (g, h) final emergence count.
Figure 3
Effect of row spacing under dry and moist field conditions on broad leaves weed density m-2
Figure 4
Effect of row spacing under dry and moist field conditions on narrow leaves weed density m-2
Figure 5
Effect of row spacing under dry and moist field conditions on biomass production (g) of weeds m-2