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The research aims to estimate allocated to quench agricultural areas in the coastal region, the amount of water during the period 2002-2012 in case of the use of modern irrigation (drip and sprinkler irrigation) instead of the traditional surface irr igation according to water legalized each method and the rate of efficiency, as well as to estimate the losses in irrigation networks allocated to agriculture and the development of appropriate pricing mechanisms of government. Find the historical and descriptive approaches adopted, and it was the most important results: 1- The results showed that if the use of drip irrigation surface irrigation in the quench-based surface irrigation acreage allowance contributed to supply up to 40% of the water used in surface irrigation amounts, and an average (174 973 785) cubic meters during the period 2002- 2012. 2- The results showed that if the use of sprinkler irrigation surface irrigation instead of the quench-based surface irrigation acreage for contributed to the supplied amount to 28% of the water used in surface irrigation amounts, and an average (122 481 649) cubic meters during the period studied. 3- economic pricing of agricultural water demand for current pricing varies, it was found that there is a deficit in the recovery of operating and maintenance costs of the territory of farmer beneficiaries of the water public irrigation networks and adult (21,500) per hectare, compared with what is being collected (3500) for. Q per hectare.
Using modern irrigation started as individual initiatives, then the government supported the introduction of these techniques through the national programme for transferring to modern irrigation that started late 2000. This programme set up to conv ert all irrigated area, where possible, from traditional methods to modern irrigation systems during 10 years period. The government has issued several decisions for facilitating transfer process and ironing out the financial and administrative constraints facing the implementation of this programme.
The experiment was conducted for one growing season 2011 at Teezen Research Station in Hama Research Center-GCSAR in order to determine water requirements, crop coefficient (Kc) and the effect of different irrigation systems on productivity of pea nut crop. Four methods of irrigation were used (drip، sprinkler، mini sprinkler and surface irrigation) with three replications for each . Experiment was designed on the basis of randomized complete block with one water treatment (75% out of the field capacity). The results showed superiority of drip irrigation in terms of water consumption, and total water consumption (6522 m 3/h), which led to savings in irrigation water by (60.14%), compared with traditional surface irrigation, with a consumption (13495 m 3/ h). It also outperformed drip irrigation when (p<0.05) in crop yield, reaching productivity 5920 kg/ha, an increase of 22.57%, and total water use efficiency 1.91 kg/m3, compared with the (control) surface irrigation, reaching productivity (4820) kg/ha. Followed by methods for: irrigation sprinkler sprays small, with a water requirement (8999 and 9396 m 3/ h), and the efficient use of water (0.67 and 0.58) kg/ m3, and the percentage of savings in water (36.65 and 31.98%), respectively, compared with surface irrigation traditional Phonology developing did not show significant differences between irrigation methods in terms of the dates of germination, flowering and maturity.
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