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Subject: Soil Science × Author: Saini, Jagmohan × End date: 2009 × Start date: 2005 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Effect of sodic water irrigation depth and gypsum on wheat and soil properties with sprinkler system
    (CCSHAU, 2005) Saini, Jagmohan; Yadav, Satyaveer Singh
    A field experiment was conducted during 2004-2005 to study the effect of sodic water irrigation depth (4, 5 and 6 cm through sprinkler system) and gypsum levels [G0, G50, G75 and G100 per cent neutralization of RSC (12.0 me l-1) with gypsum] on wheat and soil properties. This experiment was initiated in 2002 on Regional Research Station of CCS Haryana Agricultural University at Bawal (Rewari). Increased volume of sodic water and gypsum levels significantly influenced the growth parameters. The data indicated that grain yield of wheat under 4, 5 and 6 cm irrigation depth with sodic water through sprinkler was 34.27, 36.90 and 39.0 q ha-1 and with gypsum level G0, G50, G75 and G100 per cent neutralization of RSC was 34.07, 36.28, 37.87 and -XVI- 38.69 q ha-1, respectively. The increase in rain yield due to 6 cm irrigation depth over 4 and 5 cm was 13.8 and 5.7 per cent, respectively. Neutralization of RSC with gypsum decreased Na : Ca and Na : K ratio in plants. Similar results were also obtained in case of straw yield of wheat. The one of the most mimportant finding indicated that neutralization of RSC upto 75 per cent with gypsum was found at par with 100 per cent neutralization thereby indicating that under sprinkler system 75 per cent neutralization of RSC is sufficient. Application of gypsum increased the contents of N, P, K, Ca, Mg and S while Na content was decreased in grain and straw of wheat. Relatively higher pH and ESP were observed in soil under 5 and 6 cm as compared to 4 cm depth of irrigation. Soil pH and ESP decreased with increasing level of gypsum irrespective of depth of irrigation. The content of pH, EC, ESP and CaCO3 was increased with increasing soil depth and irrigation depth and decreased with increasing level of gypsum, while organic carbon was decreased with increasing soil depth. The results revealed that the hydraulic conductivity and infiltration rate of the soil increased with increasing gypsum levels but decreased with the increasing irrigation depth. The hydraulic conductivity and infiltration rate was increased by 115 and 363 per cent, respectively with the application of G100 as compared to G0 levels. The dispersion ratio and soil strength however showed an increasing trend with increasing irrigation depth but decreased with levels of gypsum.
  • Thumbnail Image
    ThesisItemOpen Access
    Effect of sodic water irrigation depth and gypsum on wheat and soil properties with sprinkler system
    (CCSHAU, 2005) Saini, Jagmohan; Yadav, Satyaveer Singh
    A field experiment was conducted during 2004-2005 to study the effect of sodic water irrigation depth (4, 5 and 6 cm through sprinkler system) and gypsum levels [G0, G50, G75 and G100 per cent neutralization of RSC (12.0 me l-1) with gypsum] on wheat and soil properties. This experiment was initiated in 2002 on Regional Research Station of CCS Haryana Agricultural University at Bawal (Rewari). Increased volume of sodic water and gypsum levels significantly influenced the growth parameters. The data indicated that grain yield of wheat under 4, 5 and 6 cm irrigation depth with sodic water through sprinkler was 34.27, 36.90 and 39.0 q ha-1 and with gypsum level G0, G50, G75 and G100 per cent neutralization of RSC was 34.07, 36.28, 37.87 and 38.69 q ha-1, respectively. The increase in rain yield due to 6 cm irrigation depth over 4 and 5 cm was 13.8 and 5.7 per cent, respectively. Neutralization of RSC with gypsum decreased Na : Ca and Na : K ratio in plants. Similar results were also obtained in case of straw yield of wheat. The one of the most mimportant finding indicated that neutralization of RSC upto 75 per cent with gypsum was found at par with 100 per cent neutralization thereby indicating that under sprinkler system 75 per cent neutralization of RSC is sufficient. Application of gypsum increased the contents of N, P, K, Ca, Mg and S while Na content was decreased in grain and straw of wheat. Relatively higher pH and ESP were observed in soil under 5 and 6 cm as compared to 4 cm depth of irrigation. Soil pH and ESP decreased with increasing level of gypsum irrespective of depth of irrigation. The content of pH, EC, ESP and CaCO3 was increased with increasing soil depth and irrigation depth and decreased with increasing level of gypsum, while organic carbon was decreased with increasing soil depth. The results revealed that the hydraulic conductivity and infiltration rate of the soil increased with increasing gypsum levels but decreased with the increasing irrigation depth. The hydraulic conductivity and infiltration rate was increased by 115 and 363 per cent, respectively with the application of G100 as compared to G0 levels. The dispersion ratio and soil strength however showed an increasing trend with increasing irrigation depth but decreased with levels of gypsum.