STUDIES ON EFFECT OF SODICITY LEVELS ON DRY MATTER YIELD, CONTENT PROTEIN AND NUTRIENT UPTAKE IN SORGHUM

STUDIES ON EFFECT OF SODICITY LEVELS ON DRY MATTER YIELD,
CONTENT PROTEIN AND NUTRIENT UPTAKE IN SORGHUM

NIRANJAN SINGH*1, S. K. SHARMA, ASHWANI KUMAR2, RAJPAUL AND SATYENDER SINGH3
Department of Soil Science
CCS Haryana Agricultural University,
Hisar-125 004 (Haryana), India
*(e-mail : nnirajan1234@rediffmail.com)
(Received : 6 June 2014; Accepted : 25 July 2014)

SUMMARY

The experiment was carried out in the Department of Soil Science, CCSHAU, Hisar during kharif season in screen house. The experiment was conducted on a sandy loam soil having initial pH (1 : 2) 8.21 and ESP 7.88. Soil of different ESP (15, 30 and 45) was prepared. The results on the studies oF different ESP levels revealed that the dry matter yield of sorghum decreased with increasing ESP levels (control, 15, 30 and 45). The maximum (48.18 g/pot) and minimum (19.78 g/pot) dry matter yield of sorghum was observed at control and 45ESP, respectively. The plant height and protein content also decreased with increasing ESP levels. The uptake of N, P, K, Ca, Mg and S decreased with increasing ESP levels. The reduction in N uptake over control was 10.83, 46.77 and 65.22 per cent at 15, 30 and 45 ESP levels, respectively. The Na uptake by sorghum crop increased significantly up to an ESP of 15, as compared to control, whereas further increase in ESP at 30 and 45, it decreased significantly, over 15 ESP. The uptake of micronutrients (Zn, Cu, Mn and Fe) also decreased with increasing ESP levels. The maximum uptake was observed at control, whereas minimum at an ESP of 45.
Keywords : ESP, nitrogen, nutrients uptake, dry matter yield, protein content, sorghum

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