List of Articles irrigation periods

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  1 - Compare of sweet sorghum growth indices under different plant density, irrigation period and nitrogen application
  Hamid Madani Babak Esfahani
  To study the effect of plant density, irrigation periods and nitrogen application on growth indices of foliage sorghum (Sourghum bicolor var. Peghah) an experiment was conducted as split, split plot based on RCBD with 4 replications at Hamadan, Iran in 2007 growing seas More

  To study the effect of plant density, irrigation periods and nitrogen application on growth indices of foliage sorghum (Sourghum bicolor var. Peghah) an experiment was conducted as split, split plot based on RCBD with 4 replications at Hamadan, Iran in 2007 growing season. plant density 100, 200 and 400 thousand plants per hectare (D1, D2 and D3), two levels for irrigation period in every 10 and 15 days (I1and I2) and two levels of nitrogen application 100,200,100 and 100,100,200 Kg Urea/ha at sowing date, 45 and 65 days after sowing date stages respectively (N1 and N2),were investigated. The results showed that the maximum total of dry foliage yield up to 18.44 t/ha was obtain by D1I1N2 treatments. Furthermore, the CGR trend for the lowest plant density (10 plant/m2) in all plant growth stages were upper than other plant density crop growth rate index. In this study, relative growth rate (RGR) trend by enhance the plant density were reduce until 1100 GDD adsorption and net assimilation rate (NAR) at 800 GDD were changed from 0.03 to 0.18 g/g/m2/GDD. Manuscript profile