Keywords : function

Economic analysis of production function broilers productions in Anbar province, the 2014

Mishaal Abid Khalaf; Sahar Mohmad Shartoh

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2016, Volume 14, Issue 2, Pages 319-328

The production of broiler chickens is of great importance and back its importance to the high yield and the speed of capital, As a result of the increasing demand for pottery meat with low volume of production it was necessary to study the reality of the production of broiler chickens and estimate the production functions in order to determine the efficiency of the use of production elements and the study belong to a sample from a breeder broiler chickens in Anbar province. It emerged from the results of the study that the production function of the type of cup dokas passed the standard statistical and economic tests, and found that the sum of the elasticities of elements equal to (0.651) which suggests that producers are working in stages economies of scale.

Estimation of surge infiltration function (CRT) in gypsiferous soil

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2007, Volume 5, Issue 1, Pages 33-39

A. I. Al-Abaid
College of agriculture / Anbar University

This research is performed at Anbar University site in gypsiferous soil classified as Gypsiorthids (37 % gypsum).to study the effect of cycle ratio time on infiltration behavior in surge infiltration state .at a steady time (2 minute )with continuity the second surge (8 h. ). Three ratios 1/4, 1/8 and 1/16were chosen to realize which minimize of them will achieve more success than the others to irrigation water under this system as compared to continues infiltration.
The experiment is designed in accordance with randomized complete block design (RCBD) with three replicates by using double rings infiltrometer.
The results showed that the infiltration rate doesn’t have constant decline in the gypsiferous soil as compared to normal behavior of other soils. The infiltration rate in the continues infiltration state decreased till 120 minutes reaching 7.40 cm.h-1 then it increase reaching 13.53cm.h-1 at the end of the test (8 h.).but in surge infiltration the infiltration rate decreases to 16.80 cm.h-1 after 120 minutes at the ratio 1/4 then reaches 19.77 cm.h-1 at the end of the test. At ratio 1/8 the decreasing occurs after 3 minutes to 13.80 cm.h-1 ,and continued to increase reaching 59.47 cm.h-1 at end of test .While at ratio 1/16 it reaches 9 cm .h-1 after 5 minutes and it increases till it reaches 27.40 cm.h-1 at the end of test .
One of the important results in this study is that the surge cumulative infiltration for the three ratios (161.63, 330.17 and 181.07 cm) higher than continues cumulative infiltration(91.38 cm only). This indicates that these ratios un successful in water discharge in this gypsiferous soil .The results also showed that the infiltration rates is not steady along measurement time , it start with high rates then decrease ,and increase continuously till final measurement with fluctuating in declination and in increasing.
The results showed that the basic infiltration rate for surge infiltration is higher than the continues infiltration at significant deferent’s showing the following results :19.77, 59.47 and 27.40 cm.h-1 respectively ,while it was 13.53 cm.h-1 for continues infiltration.
The pausing infiltration time for surge infiltration is ceases for one minute only in second surge beginning of one replicate of the ratio:1/4 and 1/16 .