Abstract
A saline-sodic sandy clay loam field (EG = 24.3-32.3 dS m', SAR = 56.6-77.5, pH, = 8.0-8.4 for the upper 15 cm soil depth) under rice-wheat crop rotation was put to reclamation by applying drainage water (EC=3.1dSml , SAR=15.4, RSC=5.9mmolcL') for irrigation. The treatments employed weretl) agricultural drainage water without any amendment, 2) soil-applied spersal (an organic soil reclaimant) @ 15 L ha1 once, 3) soil-applied gypsum ® 50% gypsum requirement of the 15 cm soil depth, 4) H1SO4 mixed in irrigation water equivalent to it's RSC, 5) soil-applied gypsum ® 100% GR of the 0-15 cm soil depth, and 6) farm yard manure (FYM) addition to the soil annually @ 25 Mg ha'. After the rice harvest, all the treatments caused a marked decrease in pH>, EG and SAR of soil compared to values before the experiment but the differences among treatments remained nonsignificant. These soil properties differed significantly with respect to soil depths having maximum decrease in the upper 15 cm depth. The paddy and wheat grain yields were not significantly affected, although the FYM treatment performed bet
G. Murtaza, , M. Qadir , anil A. Ghafoor1 . (1996) USE OF DRAINAGE WATER FOR AMELIORATION OF A SALINE-SODIC SOIL UNDER RICE-WHEAT CROP ROTATION, The Journal Soil & Environment , Volume 12, Issue (3-4).
-
Views
316 -
Downloads
31
