Indian Journal of Agronomy
  • Year: 2020
  • Volume: 65
  • Issue: 4

Effect of irrigation scheduling and organic manures on wheat (Triticum aestivum) yield and soil nutrient status

  • Author:
  • H.P. Verma1,*, O.P. Sharma2, Seema Sharma3, Rajesh Kumar4, A.C. Shivran
  • Total Page Count: 5
  • Page Number: 427 to 431

1Technical Assistant, Mechanized Agriculture Farm, Ummedganj (Agriculture University, Kota), Rajasthan324 001

2Emeritus Professor, Department of Agronomy, S.K.N. College of Agriculture (SKNAU)Jobner, Rajasthan303 329

3Associate Professor, RARI, Durgapura (SKNAU), Rajasthan302 018

4Assistant Professor, Mechanized Agriculture Farm, Ummedganj, Agriculture University, Kota, Rajasthan324 001

Sri Karan Narendra Agriculture University, Jobner, Rajasthan303 329

*Corresponding author's Email: hppersoya.p@gmail.com

Online published on 27 August, 2021.

Abstract

A field experiment was conducted in a loamy sand during the winter (rabi) seasons of 2014–15 and 2015–16 at Jobner, Rajasthan, study to the effect of irrigation scheduling and organic manures on growth, yield and quality of wheat (Triticum aestivum L.). The treatments consisted of 5 irrigation scheduling in main plots and 4 organic manures in subplots were replicated 4 times in a split-plot design. The results showed that irrigation applied at an irrigation water: cumulative pan evaporation (IW: CPE) ratio of 0.9 (I2) resulted in the maximum values of yield (grain and straw) and proved significantly superior to the remaining treatments except treatment I5 (IW: CPE of 0.8). Irrigation at an IW: CPE ratio of 0.9 (I2) exhibited the maximum value of consumptive use (395 mm) and treatment I5 revealed significantly highest water-use efficiency (11.34 kg/ha-mm) over rest of the treatments. The treatment I5 failed to show significant variation in organic carbon, available nitrogen, phosphorus and potassium after harvesting of the crop. An application of FYM at 7.5 t + VC at 3 t/ha (M3) resulted in significantly higher yield (grain and straw) over rest of the treatments but at par with M2 (VC at 6 t/ha). The highest consumptive use (409 mm) by crop was shown by the treatment M0 (Control). The significantly highest WUE was recorded under M3 (12.40 kg/ha-mm). The highest organic carbon (0.149%) was also recorded under this treatment M3. which remained at par with M1 (farmyard manure @15 t/ha) but significantly higher than M0 and M2. The significantly higher available N, P and K contents in soil after harvesting were recorded under the treatment M3, being at par with M2 but superior to rest of the treatments. Thus scheduling of irrigation to wheat either at 0.9 IW: CPE ratio throughout the growth or 0.8 IW: CPE ratio at vegetative phase + 1.0 IW: CPE ratio at reproductive phase resulted in significantly higher yield. Manuring the crop either at 7.5 t FYM + 3 t/ha VC or 6 t/ha VC were the equally effective treatments for available N, P and K status in soil after harvesting.

Keywords

FYM, Irrigation Scheduling, NP, Organic manure K, Organic carbon, Vermicompost, WUE and Yield