부산대학교 도서관

This article discusses an experiment conducted to compare the effects of Pix on both ultra-narrow row (UNR) and conventionally spaced cotton over the 2003-04 cotton season in Australia. The use of Pix as a means of controlling growth in UNR is a popular management option. Most trials comparing UNR crops and conventionally spaced crops have used different Pix strategies for each row spacing. The experiment was grown at Merrowie Station. We compared UNR and conventionally spaced cotton with two Pix treatments. Pix treatment 1 had three applications of Pix--an early application on December 12 around first square; the second on December 22; and a cut-out application on January 19, 2004. Pix treatment 2 did not have the early application on December 12, 2003. The experiment was sown using Sicala V-3RRi on October 14 and watered up on October 16. The UNR were 0.25 meters apart and conventionally spaced plots one meter apart. All plots were sown on two meter beds with 12 plants per linear meter. A randomized complete block design with four replicates was used. Standard on-farm sowing and crop management practices were used. At the end of the season crop maturity and yield were determined from weekly hand picks as the design did not enable machine harvest.