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

H.P. VERMA; O.P. SHARMA; SEEMA SHARMA; RAJESH KUMAR; A.C. SHIVRAN

doi:10.59797/ija.v65i4.3005

Authors

H.P. VERMA
O.P. SHARMA
SEEMA SHARMA
RAJESH KUMAR
A.C. SHIVRAN

DOI:

https://doi.org/10.59797/ija.v65i4.3005

Keywords:

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

Abstract

A field experiment was conducted in a loamy sand during the winter (rabi) seasons of 201415 and 201516 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 harvesti

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