Keywords : Potato


ESTIMATION OF TECHNICAL, SPECIALIZED AND ECONOMIC EFFICIENCY OF CULTIVATED POTATO VARIETIES USING DATA ENVELOPE ANALYSIS METHOD (DEA) IN IRAQ FOR SPRING LUG 2018

M. M. Alzobaee; M. A. Aldulaimi

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2020, Volume 18, Issue 1, Pages 119-131
DOI: https://doi.org/10.32649/ajas/2020/11

Research highlights the importance of potato crop, which occupies a prominent food and economic status in food security besides rice, wheat and corn at the local and global level. Despite the expansion of the cultivation of potato crop in Iraq in general and Ameriyah district in particular However, potato productivity remains substandard, this may be due to a lack of knowledge of the most efficient varieties and not to use productive resources at the levels at which technical, specialized and economic efficiency is achieved. Therefore, the aim of the research is to determine the technical, specialized and economic efficiency according to the cultivated seed category. The data envelope analysis (DEA) method was used to estimate technical, specialized and economic efficiency, assuming constant and variable capacity returns. As a result of the study, the Safrana variety achieved the highest average technical efficiency according to the stability of the yield and capacity efficiency in addition to achieving the highest average specialized and economic efficiency, The Lapadia variety achieved the highest average technical efficiency, assuming that capacity returns have changed. Therefore, we recommend the adoption of items that achieve higher efficiency and the need to redistribute the elements of production better and Achieving the optimum levels at which technical, specialized and economic efficiency is achieved and saving what has been wasted.

THE ROLE OF COMPOST AND WATER STRESS AND THE SYSTEM OF SURFACE AND SUBSURFACE DRIP IRRIGATION VEGETATIVE AND PLANT GROWTH CHARACTERISTICS OF POTATO PLANT

S. A. Mahmoud

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2020, Volume 18, Issue 1, Pages 41-58
DOI: https://doi.org/10.32649/ajas/2020/4

A field experiment was conducted in Ramadi, Anbar province, western Iraq, in soil with a Silt Loam soil during the autumn season 2018, to study the role of compost, water stress and the surface and subsurface drip irrigation system. 50, 75 and 100% of the net irrigation depth. In the design of the splintered splinters, the transactions were divided according to the design of the complete random sections and by three replicates. Each sector was divided into two main parts, in which the compost was distributed. 1 - Without adding 2 - Addition of 10 tons’ e- 1. Each was divided into two secondary pieces. 2. Sub-surface irrigation Each secondary subdivision was divided into three sub-sub-sections as experimental units where irrigation levels 50, 75 and 100% of the net depth of the irrigation were distributed. Use the American Type A evaporation pond at the irrigation time. The results showed that the level of addition of 10 tons e-1 led to a significant increase in all indicators of the study number of air legs and paper area and the weight of the tuber and the number of tubers and the marketable and the total number of 2.38 stem plant -1, 72.75 dm 2, 124.2 g and 4.84 darn plant - 131.46 tons e-1 and 42.95 tons e-1 sequentially. The average number of air stems, paper area, weight of tuber, number of tubers, marketable value and total yield of potato plant at the irrigation level were significantly higher than 100% of the net depth of the broth, reaching 2.41 stem plant-1, 65.92 dm 2, 136.7 g, 4.89, Ton e-1 and 42.55 tons e-1 sequentially. The average number of air stems, paper area, weight of tuber, tubers, marketable, and total of subsurface irrigation was also higher than 2.34 stem plant -1,68.04 dm 2, 147.7 g, 4.79,32.39 tons e-1, and 42. 13 tons e-1 sequentially, genotype and seed priming in improving seedling performance to tolerate salt stress.

INFLUENCE DEFICIT IRRIGATION AT TECHNIQUE OF SURFACE AND SUBSURFACE DRIP ACCORDING PRD ON: 1 - SOME WATER STANDARDS FOR POTATO CROP (TYPE DEZRY)

A.I. Al-Abaied; E.K. Al-Hadethi; J.S. Al-Esawi

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2019, Volume 17, Issue 2, Pages 165-180
DOI: 10.32649/aagrs.2022.170549

A field experiment was applied on clay loamy soil which was classified as typic torrifluvents to study effect of deficit irrigation at technique of surface and subsurface drip irrigation with partial root zone dry (PRD) on irrigation and water use efficiency and determination of Water consumption, As well as to know the heterogeneity of soil moisture content at growth stages. The experiment is designed according to the randomized complete block design, the experiment included 16 treatment, each treatment represented a block, each block included three replicates, program of used statistical analysis. the stages of crop growth were divided into four stages. the study showed that the best water use efficiency was in PRD reaching 2.50 kg m-3,while in surface drip irrigation treatments the comparison was 2.10kg m-3, the highest irrigation efficiency in PRD was also at 94 %, while the lowest value in surface drip irrigation was 89%, it was also found that the highest value of the mean weight diameter was in the PRD treatments at 4.07 mm, while surface drip irrigation was 3.72 mm. The lowest water consumption in the PRD method was 300 mm, while the surface drip irrigation was 400mm ,for treatment that have not been subjected to any moisture stress at all stages of growth in both manners.

The Effect of planting date on growth and yield of five potato varieties Solanum tuberosum L.

Maath. M. Al-Abdaly; Ahmed Abood Al Zobaay

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2016, Volume 14, Issue 2, Pages 237-245

The experiment was conducted in the field of Agriculture college _Baghdad University, Abu Ghraib. Alternation location for Anbar University during spring season 2016. The objective was to evaluation of five varieties performance of potato Solanum tubeorosum L (Volare, Arizona, Hermes, Riviera, Arnova) imported recently seeds of elite rank. The study was done as a factorial experiment based on randomized complete block design with three replicates (R.C.B.D) under effect of three punting dates (15 december,1 January,15 January ) the field experiment was divided into three blocks with 15 treatments randomly distributed and thus there were 45 experimental units. Within R.C.B.D the plants of (Volare) growing in first date were significant superiority in, plant height, number of stems per plant, dry weight of vegetative and leaf area, with 81.76 cm plant-1, 2.733 stem plant-1, 203.5 gm, 49.08 dm2) respectively. The plant of (Volare) growing in fittest date were surpassed in most of yield traits as tuber weight average, plant yield, marketable yields and total yields, with 242.0 gm, 1801.7 gm plant-1, 96.209 ton ha-1, 97.341 ton ha-1, respectively. The plants of (Arizona) growing in first date were significant superiority in characters of yield quality as dry weight percent , starch percent ,specific gravity, protein percent and T.S.S, with 17.67%, 19.67% , 2.068 gm.(cm3)-1, 8.76% , 7.987%, respectively.

Effect of spraying the nutrients in the vegetative growth and yield of potato Solanum tuberosum L. CV. Savanna at spraying season

Mead L. A. A Aldulime; OMAR H. M. ALMEHEMDI

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2016, Volume 14, Issue 1, Pages 237-246

This experiment was conducted in a field at Hameed Shaaban, Abu Ghraib during the spring season 2015. Seeds of Elite rank of Savanna potato were planted in 4m rows …75 cm between each other and 25 cm between tubers. The depth of cultivation was 10-12 cm. The field was divided into three blocks with 11 treatments randomly distributed and thus there were 33 experimental units within randomized complete block design (RCBD) to test five types of nutrients; i.e. Biohorm, a growth regulator and enzymatically activator; Foliartal, a neutral leaf nutrient; Grow more, a leaf nutrient high in potassium; Multisource- N, a leaf nutrient high nitrogen and Foliartal, a phosphorus-rich fertilizer. Each was applied in two concentrations 100 and 250 ml.L-1. The treatments were assigned as (F0 to F10). Results showed a significant superiority of Biohorm treatment at 250 ml. L-1 for most traits as dry weight of vegetative 153.43 g , leaves content of chlorophyll 92.10 (mg 0.100 g-1 fresh weight) , leaf area 28.59 dm2 , tuber average weight 116.56 g and plant yield 1220.1 g.plant-1. Foliartal (neutral) treatment at 100 ml. L-1 rivaled significant tubers per plant 6.487 tuber. Plant-1.

Effect of spraying with Growth Regulators and some nutrients in quality characters of Potato plants Solanum tuberosum L. Burren cv

Omar H. M. AL-muhamadi; Ali kh.H. AL- essawi

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2015, Volume 13, Issue 2, Pages 267-276

The experiment was conducted in a field of Anbar governorate /Fallujah city 60 km western of Baghdad at near Euphrates river bank were planted at 20th of January during for 2013 and2014 Potato tubers Solanum tuberosum L. cultivar barren class Elite, the Randomized Complete Block Design (RCBD)was used and L.S.D. test at level 5%. The chemical fertilizer treatment T14 (400.120.240) NPK increase N and K in leaves and NO3 in tubers for both season significantly to 1.93% ,1.76%, 47.66 mg.kg-1 and 1.89% , 1.75% ,47.66 mg.kg-1 respectively and the content of N and protein in tubers for both seasons to 2.37% , 0.31% and 0.32% , 2.44% on respectively. The influence of Cytokinin treatment CPPU 10 ,5 mg.L-1 on qualitative properties of yield were given the highest dry matter%, starch%, specific gravity g.cm-3and TSS% at first season which were 20.95%,14.67% , 1.083 g.cm-3 , 6.86% respectively, and were given the highest dry matter ,starch 19.69% and 6.25% respectively. The control treatment increase the content of NO3 in tubers to 28.33, 27.66 mg.kg-1 for both season respectively.

The impact of irrigation water salinity, water magnetization and soil available moisture depletion percent on potato yield and growth

Bassam AL-Deen AL-Khateeb; Huthaifa Jaseem Mohammed AL-Najm

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2015, Volume 13, Issue 2, Pages 49-60

A field experiment was carried out to study the impact of irrigation water salinity, water magnetization and soil available moisture depletion percent on some soil physical properties and potato yield and growth during the spring season 2012. The field located at Anbar province latitude 33.2614о N and 43.1755о E longitude with silty loam soil texture classified as Coarse – Loamy; Mixed; active; hyper thermic Typic Torrifluvent.
The experiment includes three factors; the first one was irrigation water salinity with two levels: Euphrates river water with electric conductivity 1 ds. m-1 and drainage water, which was brought from a surface drain, located on the opposite side of the riverbank with Ec 4 ds. m-1, the second factor was two levels of irrigation water magnetization, which were magnetized with 1500 gauss magnetization intensity and without magnetization. The third factor was three levels of soil available moisture depletion percent 50, 60 and 70%s.
Split – split plot with R. C. B. D. experimental design was used with three replicates, Plant height, leaf area and Plant root length were decreased with the increasing of irrigation water salinity and the depletion percent while the same parameters increased when magnetized water used for irrigation.

The spraying with some nutrients onPotatoPlantsSolanum tuberosum L.cv. Burren and its effect in growth and production

Omar H. M. AL-muhamadi

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2015, Volume 13, Issue 1, Pages 362-372
DOI: 10.32649/ajas.2015.120039

The field experiment was conducted in Anbar governorate /Fallujah city 60 kmwestern of Baghdad onEuphratesriver bank 20th of Januaryduring thespring seasons from 2013 and 2014 Potato tubers of Burren CV. (class Elite) were planted for tow above seasons and the experiment was conducted depending on Randomized Complete Block Design (RCBD) and the results were tested depending on the lest significant differenceL.S.D on probability level 5%.
The chemical fertilizer treatment T14 (400.120.240)(NPK) recorded a high fresh weight in both of season to 53.96 gm and the potassium treatment T10 250 m.l-1increase the plant hight up to 60.03 cm for (gm) first season 53.96(gm), while the CK treatment 10 m.l-1T9 effect in vegetative growth characters like number of stems per plant and leave area (cm) 2 for plant in both seasons which reached to 4.30 stem/plant and 11327 cm2 and 4.50 stem/plant and 12073 cm2 respectively. The salicylic acid treatment 250 m.l-1T7 showed a high chlorophyll ratio in leaves for two seasons to (52.73 and 54.83 SPAD-UNIT).Respectively. The CK treatment T9 10 m.l-1 and Amino Acid treatment T13 500 m.l-1given a high ranges of tuber numbers were recorded9.30 and 9.50 tuber/plant for both seasons respectively,
while the Amino Acids treatment T12 250 m.l-1 gave a high average in tuber weight and plant yield for the first season were reached 166.90 gm and 1050 km per plant, the salicylic acid treatment T7 250 m.l-1gave high average of marketable yield for both season to 31.55 and 32.42 ton/harespectively and the Amino Acids treatment T12250 m.l-1 gave high average of total yield was reached 46.95 ton/ha for the first season.

Effect of spraying some organic fertilizers on growth and yield and quality of three potato cultivars

Omar H. Muslah; Sadek K. Sadik; Majed A. Hanshal

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2011, Volume 9, Issue 1, Pages 68-78

Abstract
An experiment was carried out in one of the private fields in Amiriya (10 km south of Fallujah), Anbar province, to study the effect of spraying some organic fertilizers on growth , yield and quality of three potato cultivars during spring season of 2010, seed tubers (class Elite) were planted at 6-2-2010. Plants were spread at 45 days and 65 days from sowing. Use the randomized block design full RCBD (Randomized Complete Block Design) with three replicates, the means were compared according to L.S.D. test at 5% significant level.
Spraying of Bepton was superior in plant length 104.44 cm, leaf area 49.86 dm2, chlorophyll 49.18 SPAD unit, number of marketable tubers plant 6.67 tubers, total plant yield 889.1 gm, dry matter 16.88 %, starch 11.56% and specific density 1.0640 g/cm3 , compared with Bihorm solution. Desiree cv. was superior in plant length 114.56 cm, marketable tubers yield plant 630.1 gm, dry matter 15.93 % and specific density 1.0594 g/cm3, compared with Avalon and Arizona cv.

Field studies on the effects of the entomopathogenic fungi, Beauveria bassiana (Bals.) Vuill on the mites Tetranychus urticae Koch. on potato

Luaay K. Alani

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2011, Volume 9, Issue 1, Pages 215-221

A field study was conducted in the location of the department of Horticulture – College of Agriculture to determine the effect of Beauveria bassiana against the two spotted spider mites Tetranychus urticae on potato. The concentrations of B.bassiana used were 1x104, 1x106, 1x108, in addition to the positive control as the pesticide fytoclean and negative control as distilled water. The best response was found at 1x108 of the fungus. The number of mite eggs was reduced from 42.33 in the control to 4.33, 4.67, 3.33 egg/leaf for the three concentration. respectively. Moreover, the mobile stages were also reduced from 26.00 in control to 6.33, 3.67, 2.67 individual/leaf respectively. However, the insecticide fytoclean used as positive control reduced the number of eggs and moving stage to 1.67, and 1.00 individual/leaf. Results of this study indicate the importance of introducing the fungus Beauveria bassiana in the biological control of mites.

Influence of Nitrogen Fertilizer and Spraying Terra-Sorb on Growth and Yield of Some Potato Cultivars Solanum tuberosum L.

Shaymaa A. Al-Qaisy; Sadeq Q. Al-Baity

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2010, Volume 8, Issue 2, Pages 139-150

This study was conducted in vegetable farm, Department of Horticulture, College of Agriculture, University of Baghdad for fall season 2008 and spring season 2009. To investigated the influences different applied to the soil of nitrogen fertilizer and foliar sprays (Terra-Sorb) on growth yield some potato cultivars. RCBD design for split-plot was adapted, the cultivars Binella and Riviera for fall season and Desiree and Riviera for spring season were main-plot.
البحث مستل من رسالة ماجستیر للباحث الأول
While the seven levels of N fertilizer with control treatment in sub-plot as follows: (T0) as control (without fertilizer) and (200 , 400 , 600 Kg N/ha) and ((200 , 400 , 600 Kg N/ha + 3ml/L terra-sorb) and only (3ml/L terra-sorb).
The results shown the superior of Binella and Desiree cultivars in vegetative and yield characters, compare with Riviera cultivar. While the fertilizer treatments significantly influenced the vegetative characters, the highest level of( 600 Kg N/ha + terra-sorb) significantly gave the highest emergence percentage (92.12 and 100.0%), numbers of main (4.15 and 4.70 stem/plant), the highest of plant (68.41 and 77.55 cm), leaf area (7793.4 and 10534.4cm2), leaf area index (4.15 and 5.61), the percentage of chlorophyll in leaf (41.83 and 45.83 SPAD), the dry weight of vegetative parts (63.13 and 66.78 g/plant) for fall and spring season respectively. While (400 kg N/ha + terra-sorb) significant influenced the number of tubers (9.50 and 10.78 tuber/plan), plant yield (1033.3 and 1034.3g/plant), total yield (49.11and 53.52tan/ha) for both season respectively.

Effect of salt stress on vegetative growth characteristics of four potato cultivars plantlets in vitro

Lamyaa kh. Jawad; Mubashar S. Omer; Sahaf; Fadel H. Al

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2010, Volume 8, Issue 2, Pages 168-189

An experiment was carried out at the laboratory of tissue culture, Horticulture Dept., college of Agric., University of Baghdad, to evaluate the effect of salt stress on vegetative characteristics of four potato cultivars plantlets (Agria, Ajeba, Mondial and Desiree). five concentration of NaCl (0, 25, 50, 75 and 100 mM/ l) and/ or Na2SO4 (0, 12.5, 25, 37.5 and 50mM/l ) were supplemented to the vegetative growth medium.
Results could be summarized as follows :
Application of 25 mM NaCl/ l to the growth medium increased, number of shoots /plantlet (5.67) and dry weight of shoots and roots (0.022, 0.013 gm), whereas, concentration of 50-100 mM NaCl /l had inhibitory effect on vegetative growth. The Na2SO4 application at 12.5 mM/ l on the other hand, increased slightly (non significant) vegetative growth characteristics, while the concentration 25-50 mM Na2 SO4 L had deliterious effect on shoot and root growth .Shoot content of chlorophyll was decreased while proline content was increased as the concentration of either salt was increased .Desiree and Mondial had the greatest shoot growth ,while Ajeba and Agria had the lowest . The interaction between the two salts on vegetative growth was significant where, the greatest number of shoots was found when 25 mM NaCl with 12.5 mM NaSo4 l were added whereas ,highest dry weight of shoots and roots , and shoot content of chlorophyll a and total were resulted from the application of 25mM NaCl with no application of Na2SO4 highest concentration of both salts resulted in highest content of proline in the shoots. Desiree cultivar treated with 25mM NaCl l had the greatest number of shoots and dry weight of roots.

Effect of number of spray with spray with nutrient fertilizer (Scotts) on growth and production of potato cv. Desiree

Omar H. Al-Mohammedi; W. A. Hussein

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2008, Volume 6, Issue 2, Pages 152-158

An experiment was carried out at the field of Agriculture college/ Abu-Ghraib during fall season of 2006 to study the effect of number of sprays with Foliar nutrient fertilizer (Scotts) on growth and production of potato Cv. Desiree in Soil (pH = 7.5) and (Ec = 4.2). Scotts foliar fertilizer (Scott Company product) contains 10% N, 15% P2O5, 31% K2O, 0.1% MgO 0.1 and amount of chelated B, Cu, Mg, Zn and Fe at the rate of 2 ml/ L of water, plants were sprayed to drip point with either distilled water (30 days), or with nutrient solution, once (45 days), twice (45 and 60 days), or three times (45, 60 and 75 days) after planting plus control. Randomize Complete Block Design was adapted with three replicates. Plant height and number of branches/ plant increased when sprayed three times to 49cm and 13.67 branch/plant respectively, All treatment increased vegetative growth dry weight to 68, 64 and 61.7 g/ plant when sprayed three times, twice, once respectively. Dry weight percentage, tuber weight and plant yield increased when sprayed three times at 26.67%, 93.7 g/ tuber and 883.3g/ plant.

Effects of Organic and Nitrogen Fertilizers on Growth and Productivity of Potato (Solanum tuberosum L.)

H. N. Farhan

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2008, Volume 6, Issue 1, Pages 136-146

The study was conducted in the west area of Iraq on the right side of Euphrates river, during Spring season of 2004. The goal was to study the effects of organic fertilizer (cow manure) and nitrogen fertilizer (urea N 46 %) on growth and productivity of potato crop var. Diesseri. Cow manure fertilizer used in two levels (0, 20 ton/ h) while nitrogen fertilizer used also in two levels (0, 200 kg N/ ha). Complete Block Randomized Design with three replicates was used in this experiment. The results showed the following:
1. Superiority of organic fertilizer treatment (20 ton/ ha) in comparing with nitrogen fertilizer treatment in most morphological, physiological and productivity characters.
2. Superiority of nitrogen fertilizer treatment (200 kg N/ ha) in comparing with organic fertilizer treatment in chlorophyll contents and total tuber number per plant.
3. Organic fertilizer treatment gave total yield and protein percentage in tuber 34.844 ton/ ha and 1.78% respectively. While nitrogen fertilizer treatment gave 30.636 ton/ ha and 1.68% respectively. Control treatment gave total yield 19.511 ton/ ha and protein percentage 1.32% respectively.
4. Organic fertilizer treatment increased yield and protein percentage by 78.5% and 34.6% respectively compared with control treatment.
5. No significant interaction between nitrogen and organic fertilizer treatments.

EFFECT OF FOLIAR SPRAYS WITH NUTRIENT SOLUTION AND SEED SIZE ON THE STORABILITY OF POTATO TUBERS DESIREE CV.

A. W. Al-Juboori

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2008, Volume 6, Issue 1, Pages 127-135

This study was conducted in the field and cold storage unit, Department of Horticulture, College of Agriculture, University of Baghdad, during Autumn 2004 and spring 2005, two sizes (20-35) mm and (40-55) mm were used, the types of nutrient solution (grow more, grow plus, king life) were sprayed twice, the first after 45 days from planting and the second after 21 days from the first sprays.
After the harvest, curing was done and the potatoes tubers were kept in bags with 5 kgs for the experimental unit with 3 replicate, CRD were used. All the treatments were stored at 4 + 2 o C for 3 months. Reconditioning were used for the potatoes taken from the cold store.
The experimental results shows that no significant differences due to the seed sizes in the percentage of weight loss in the first season, while the smaller seed size enhanced the weight loss up to 4.88% as compared with the large tuber seeds which reduced it to 3.99 %.
Spraying with grow more increased the percentage of weight loss up to 4.42% as compared with spraying with grow plus which reduced this percentage to 3.66% for the first season. In the second season, spraying with king life increased this percentage up to 5.97% as compared with spraying with grow more which reduced this percentage to 3.41% at the end of store period.
There is no significant differences due to tuber seed size and type of nutrient solutions used in this study on the percentage of decay.
There is no significant differences due to the tuber sizes used in this study in the number of sprouted eyes in the first season. The small size tubers increased this percentage up to 61.1% in the second season as compared with large size tuber which reduced this percentage to 57.1 %.
The control treatment significantly increased the percentage of sprouted eyes up to 46.9 % as compared with the treatment with grow plus while reduced this percentage to 37.7 % in the first season, while in the second season treatment with grow more increased the percentage up to 69.2 % as compared with control which cases a reduction of this percentage to 50.7 %.

The effect of potassium Fertilization and the Direction of furrows on the growth and yield of potato Solanum tuberosum L.

S. A. M. Al - Muhamadi

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2007, Volume 5, Issue 2, Pages 244-250

This experiment was conducted on potato cultiver Solanum tuberosum L. (desiree cv.) during winter season (2000 – 2001 ) in the west of Faluja city in loamy salt clay soil with a split-plot design, to study the effect of three levls of k-fertilizer. these levels are 0.00, 300, 600 k.g. ha-1 and also the effects of two directions of rows directions paralled to sun light, (from the east to the west) on vertical directions to sun lights .
Results indicated that number of tubers / plant, weight of dry matter and percentage of N in leaves where increased significantly upon the use of K.fertilizer applied vertical directions of rows. Plant hight and total yield were also increased significantly upon the use of K. fertilizer.

Effect of potassium fertilizer and row direction on growth and yield potato (Solanum tuberosum l ) CV . Desiree

A. F. R Al-Obidy

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2005, Volume 3, Issue 2, Pages 110-115

This study was conducted during growth season in privet farm (10)km from south east of Falluja beside Euphraties river bank in loamy –caly soil , to study the effect of three levels of potassium fertilizer (10, 60 and 120) Kg K2O / dm and two direction of row ( direction paralele to the sun light from the east to the west and on vertical direction to the sun light ) on the growth and yield of potato CV. Desiree using split – plot design the experiment results showed a significant increase in plant height and total yield of 51.09 cm and 8.63 ton / dm . Potassium at the rate of 120Kg K2O / dm with dire row direction paralele to sun light significantly increased tubers hydrogen and phosphorus content up to 2.397% and 1.145 % respectively , while using K2O at rate of 120Kg K2O /dm and row vertical direction to the sun light significantly increased tubers potassium content up to 5.79 % .