![]() The abscissa of both models was based on WP rather than the standard soil electrical conductivity (ECw). The vGG model: vGG can represent salt tolerance of most crops, by using varying wilting point of average root zone salinity, at which the yield has declined by 50%. Modified MH model (t-test = Y/Ymax = a ∗ (ASW–threshold’s constant) revealed that a single dimensionless curve could be used to express yield-salinity interference when represented by varying ASW. It is concluded that an alternative S-shaped response model provides better fit to our experimental data sets. The validation was conducted with theoretical soil plant atmosphere water (SPAW) to predict the results on golf courses. Their empirical models were modified and instead of soil electrical conductivity of irrigation water (ECe) we used wilting point (WP) and RASW to follow the changes in relative yield. Two salinity empirical models were tested (Mass and Hoffman MH and van Genuchten–Gupta vGG). Sprinkler irrigation and line source techniques were used for water application, creating a saline gradient under a precise irrigation water distribution. The experimental plots were established in the North Negev, Israel (Sweet corn) and the Algarve, Portugal (Lettuce and Bermuda grass covering the golf courses). ![]() (B) Using a deterministic numerical soil water model to validate the theory on Bermuda grass of golf courses. This work reassesses crop response to availability of saline soil water ASW in two stages (A) Develop a simple approach suggesting that permanent wilting point (WP) increases under high saline soil water tension and relative yield of Lettuce (Lactuca sativa L., var longifolia Lam., cv. The phenomenological expression showing crop yield to be directly dependent on water deficiency, under saline conditions, has encouraged a continued focus on salinity as a viable approach to increase crop yields.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |