Abstract
Irrigation application and organic amendments could contribute to the improvement of wheat production in coastal areas. Field experiment was carried out at Shamnagar, Satkhira Sadar for the improvement of wheat production in saline areas through irrigation application and gypsum amendments. Two wheat cultivars viz. L-880-43 and BARIghom- 26 were used as test crops. There were six treatments such as control (no irrigation); one irrigation at vegetative stage with canal water (canal water means rainwater harvested in natural/man-made canal); one irrigation at vegetative stage with STW water + Gypsum application @ 200 Kg/ha (STW means sallow tube-well); Irrigation at vegetative and heading/flowering stage with canal water; Irrigation at vegetative stage with saline canal water + Gypsum application @ 200 Kg/ha; Irrigation at vegetative and heading/flowering stage with STW water + Gypsum application @ 200 Kg/ha. The treatments were allocated in the main-plot and the cultivars in the sub-plot all experimental plots received recommended doses of urea, triple super phosphate, and muriate of potash. The treatments were imposed accordingly. The results showed that soil salinity caused a significant reduction in growth and yield components of both wheat cultivars. Irrigation application and Gypsum amendments significantly increased the growth and yield components of both cultivars under soil salinity. Soil salinity also reduced grain yields of both cultivars. Combined application of irrigation water and gypsum amendments showed higher yields than that of sole application of irrigation water during saline conditions. Gypsum used as amendments because it reduces the soil salinity. Therefore, the present study suggests that wheat production might be feasible in coastal areas of southern Bangladesh (saline soils) through irrigation application and gypsum amendments.
 Res. Agric., Livest. Fish.6(1): 1-10, April 2019
Highlights
Wheat (Triticum aestivum L.) is the most important cereal crop and it ranks first both in acreage and production in the world (FAO, 2008)
Interaction between irrigation treatment and variety The highest plant height (97.87cm) was found in the interaction of V1T6 (Variety L-880-43 and irrigation at vegetative and heading/flowering stage with STW water + Gypsum application @ 200 Kg/ha) and the lowest plant height (79.67cm) was found in the interaction of V2T4 (L-880-43 and Irrigation at vegetative and heading/flowering stage with canal water) which was statistically identical with the interaction of V2T2 (BARIghom-26 and one irrigation at vegetative stage with canal water) where plant height was 79.73 cm. (Table 3)
Effect of irrigation treatment The highest number of tiller (5.635) was found in T5 treatment (Irrigation at vegetative stage with saline canal water + Gypsum application @ 200 Kg/ha) and the lowest number of tiller (4.400) was found in T2 treatment (One irrigation at vegetative stage with canal water) which was statistically similar with T1 treatment where tiller number was 4.400 (Table 2)
Summary
Wheat (Triticum aestivum L.) is the most important cereal crop and it ranks first both in acreage and production in the world (FAO, 2008). It is an important cereal crop in dry region of the world and it is characterized as being moderately tolerant to salinity. Germination and seedling growth are reduced in saline soils with varying responses for species and cultivars (Hampson and Simpson, 1990). In view of another projection, 2.1% of the global dry land agriculture is affected by salinity (FAO, 2008). The second one is the reclamation of salt affected land through land leveling, sub-surface drainage, soil amendments and improved irrigation practices. The selection and improvement of existing crop cultivars to fit into the varying degrees of salinity is more feasible than soil reclamation (Haque et al, 1993)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
