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sweet-ann [11.9K]
3 years ago
13

Both SAR and EC are important attributes of irrigation water. What do these measures indicate? What is the danger of irrigation

with water of:
a. high SAR
b. a high EC?
Business
1 answer:
PSYCHO15rus [73]3 years ago
4 0

Answer:

a. SAR is the Sodium adsorption ratio of the water used for irrigation purpose. SAR is ratio of sodium concentration to that of calcium and magnesium concentration.This value is also useful while managing soils that have high concentration of sodium which can occur naturally in some soils.  Although sodium is a macro-nutrient for plants, higher concentration of sodium can cause the displacement of the calcium and magnesium ions in soil which can affect the soil structure by preventing aggregation of clay in the soil resulting in a decrease in the infiltration rates.

b. EC is the electrical conductivity of the soil which depends on the salinity of the soil. High salinity means more solutes in water and this increases the osmotic potential of the soil solution making it difficult for plants to absorb water.

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Which one of the following statements related to the internal rate of return (IRR) is correct? Multiple Choice Financing type pr
aleksley [76]

Answer:

nd -4- 2 (1)/(2)

Explanation:

6 0
3 years ago
Primara Corporation has a standard cost system in which it applies overhead to products based on the standard direct labor-hours
marysya [2.9K]

Answer:

See below

Explanation:

1. Predetermined overhead rate

= Total fixed overhead cost for the year / Budgeted standard direct labor hour

Predetermined overhead rate = $530,400 / 68,000

Predetermined overhead rate

= $7.8 per direct labor hour

2. i. Fixed overhead budget variance

= Actual fixed overhead - Budgeted fixed overhead

= $521,000 - $530,400

= $9,400 favourable

ii Fixed overhead volume variance

= Budgeter fixed overhead - Fixed overhead applied to work in process

= $530,400 - (66,000 × $7.8)

= $530,000 - $514,800

= $15,200 unfavorable

3 0
3 years ago
Variable Fixed Output Marginal Total Total Marginal cost
allsm [11]

Answer:

The average total cost of producing 60 units of output is:

b. $21.67

Explanation:

a) Data and Calculations:

Variable   Fixed   Output     Marginal Physical     Total      Total    Marginal

Input         Input                  Product  of Variable    fixed  variable    Cost

                                              input                         cost        cost

0                 1             0                                           $500        $0

1                  1            10               (A)                       $500      $200         (F)

2                 1           25               (B)                       $500        400          (G)

3                 1           45               (C)                       $500        600          (H)

4                 1           60               (D)                       $500        800           (I)

5                 1           70               (E)                       $500       1000           (J)

The total cost of producing 60 units of output = $1,300 ($500 + $800)

Average total cost of producing 60 units of output = $21.67 ($1,300/60)

8 0
3 years ago
Olivia bought a $1,874 sprinkler system with her credit card. Her credit card has an APR of 10.31%, compounded monthly. She made
Radda [10]

Answer:

Percentage of the total lifetime cost of the system that the original price made up = 59.07%

Explanation:

The monthly payments for the sprinkler system can be calculated using the formula for calculating the present value of an ordinary annuity as follows:

PV = P * ((1 - (1 / (1 + r))^n) / r) …………………………………. (1)

Where;

PV = Present value or original price of the sprinkler = $1,874

P = Monthly payment = ?

r = Monthly interest rate = APR / 12 = 10.31% / 12 = 0.1031 / 12 = 0.00859166666666667

n = number of months = number of years of payment * 12 = 4 * 12 = 48

Substitute the values into equation (1) and solve P, we have:

$1,874 = P * ((1 - (1 / (1 + 0.00859166666666667))^48) / 0.00859166666666667)

$1,874 = P * 39.1976732321759

P = $1,874 / 39.1976732321759

P = $47.81

Therefore, we have:

Total payment for the sprinkler = Monthly payments * Number of months = P * n = $47.81 * 48 = $2,294.88

Total cost in water = Cost in water per week * Number of weeks in a year * Number of years that Olivia kept the sprinkler system = $2.11 * 52 * 8 = $877.76

Total lifetime cost of the system = Total payment for the sprinkler + Total cost in water = $2,294.88 + $877.76 = $3,172.64

Percentage of the total lifetime cost of the system that the original price made up = (Original price of the sprinkler / Total lifetime cost of the system) * 100 = ($1,874 / $3,172.64) * 100 = 59.07%

4 0
3 years ago
Webster is a talented baker and has a degree in business management. He wants to own his own chain of incorporated bakeries one
Semmy [17]

Answer:Lack of Feasibility studies

Explanation:

He might experience obstacle if he choose not to understand the area and its demand by the people around the selected area.

Secondly is lack of capital to start up the business.

7 0
3 years ago
Read 2 more answers
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