*3.5. Effects of CA and Irrigation System on Water Productivity*

Water productivity was found significantly increased under CA and drip irrigation systems for all crops during both irrigated and dry season production (Table 7). The mean water productivity of garlic, cabbage, potato, and maize was increased, respectively, by 256%, 43%, 53%, and 9% under CA when compared with CT. Similarly, water productivity of potato and onion was significantly increased under a drip irrigation system when compared with an overhead system, both irrigation systems were under CA practice. The mean water productivity of potato and onion was increased by 38% and 33% under,

respectively, under the drip water application system when compared with overhead water application using a hose.


**Table 6.** The mean value of crop yields under different tillage (CA versus CT) and water management (drip versus overhead water application) systems.

Note: N, SEM, Max., Min., \*, \*\*\* are sample size, standard error of the mean, maximum, minimum, and significance at *p* < 0.05, and *p* < 0.001%, respectively.

**Table 7.** Mean value of water productivity under different tillage (CA versus CT) and water management (drip versus overhead water application) systems.



**Table 7.** *Cont.*

Note: N, SEM, Max., Min., \*, \*\*, \*\*\* are sample size, standard error of the mean, maximum, minimum, and significance at *p* < 0.05, *p* < 0.01 and *p* < 0.001, respectively.
