Abstract
A field experiment was conducted to study the growth dynamics and productivity of spring maize under modified microenvironment during spring season of 2014. Three irrigation levels (1.25 (I1), 1.0 (I2) and 0.75 (I3) IW: CPE) and four manuring treatments (surface manuring (S), sub-surface manuring (DF), digging alone (D) and control (C) were evaluated. Dry matter accumulation, leaf area index, grains/cob, ear length and 100 grain weight and grain yield were significantly higher in I2than and I3. Sub-surface manuring resulted in significantly higher crop dry matter, LAI, number of grains/cob, ear length, 100 seed weight and grain yield compared to other manuring treatments. The micro-climatic modifications through sub-surface manuring and irrigation application at 1.0 IW: CPE could be helpful in sustainability of spring maize productivity in semi-arid regions.
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