Effect of Phosphate and Potassium Fertilizer Rates on Potato Plants Grown under Water Stress Conditions

Hashem, Fadl A.; Taha, Noura Mohammed; Abd-Elrahman, Shaimaa H.

doi:10.9734/ijpss/2016/28372

Cited by 4 publications

(2 citation statements)

References 14 publications

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“…Increasing irrigation level over 50% of IR led to significant reductions in WUE (Table 8). These results agree with those obtained by Hashem et al (2016). There was a significant interaction between irrigation water treatments and applied K fertilizer for WUE.…”

Section: Water Use Efficiency (Wue)supporting

confidence: 92%

Comparison between organic and mineral sources of potassium and their effects on potassium fractions in clay soil and productivity of potato plants under water stress conditions

Abd-Elrahman

Taha

2018

Egypt.J. Soil Sci.

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P OTASSIUM (K) is an essential element for plant growth that maintains water balance within its cells. Different forms of K were investigated for their effects on potato (Solanum tuberosum, cv. Spunta) plants grown under water stress conditions as a kind of adaptation to the climatic changes and water shortage under Egyptian soil conditions. Also, knowledge of different K fractions in the studied clay soil is important to achieve the sustainability in agriculture. Therefore, a field experiment was conducted during the two tested seasons of years 2014 and 2015 at the Faculty of Agriculture, Ain Shams University, Qalubia governorate, Egypt. Two sources of K were tested under three levels of irrigation water in a split-plot design. Results indicated that K fractions in soil were in order of total K > non-exchangeable/ fixed > exchangeable > water soluble. The 50% irrigation level of irrigation requirements (IR) combined with K-humate as ground application increased water soluble and exchangeable K in the studied soil. While there was hardly no changes observed due to the applied treatments on fixed and total amounts of K in the soil. Regarding the studied vegetative growth and yield parameters of the growing potato plants, the treatment 100% of IR combined with K-humate as soil application caused significant increases. The specific gravity of tuber, as an important indicator of potato tuber quality, recorded the highest value by applying 50% of IR combined with K-humate as ground addition, compared to mineral addition which came in the second order. Regarding the nutrient concentrations in potato haulm, results revealed that the 50% of IR combined with K-humate gave the highest content of N, while the same irrigation level with K-humate plus foliar spray gave the highest content of P and K, during the two tested seasons. In tubers, 50% of IR combined with K-humate as soil application gave the highest concentration of N and P during the two tested seasons, while 75% of IR in the first season and 50% of IR in the second season combined with K-humate plus foliar spray gave the highest values of K content. The calculated water use efficiency (WUE) showed that the highest value was obtained by 50% irrigation level of IR combined with soil application of K-humate.

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Section: Water Use Efficiency (Wue)supporting

confidence: 92%

Comparison between organic and mineral sources of potassium and their effects on potassium fractions in clay soil and productivity of potato plants under water stress conditions

Abd-Elrahman

Taha

2018

Egypt.J. Soil Sci.

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“…Potato (Solanum tuberosum L.) is the fourth crop produced worldwide after rice, wheat, and corn, with a total global production of 365 million tons in 2012 and a cultivated area of 18.6 million hec crop. Potato plants are more productive and produce higher tuber quality when watered precisely using soil water tension than if they are under or over irrigated (Hashem et al, 2016;Rosen et al, 2014). Also, potato is sensitive to deficit irrigation throughout various growth stages, especially in tuber formation up to harvest (Badr et al, 2022;Bahramloo & Nasseri, 2009;Shock, 2004;Thornton, 2002) found the sensitivity of potatoes to water stress was more remarkable when water was applied at individual growth stages than at different severities of water stress.…”

Section: Introductionmentioning

confidence: 99%

Effect of Water Deficiency in Different Stages of Potato (Solanum tuberosum L.) Growth

Taleb¹,

Suleiman

Abu-Rayyan

et al. 2022

MJSc

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The experiment was conducted to assess the sensitivity of potato yield to different irrigation levels at different growth stages. Irrigation levels were determined as percentages (WI 100% as readily available water to the crop (RAW)), and for the rest of the treatments (WII 75%, WIII 50%), as they were applied separately to all four stages of crop growth i.e., vegetative (SI), tuber initiation (SII), tuber bulking SIII, and tuber maturation (SIV). The design of complete random sectors was adopted to perform the experiments. The results revealed that all the studied parameters: plant height (cm), vegetation plant weight (g), number of tubers per plant, tuber weight (g), tuber yield (ton/ha), and crop water productivity (kg/m3) varied among irrigation water levels at different stages of growth. It was found that the two stages, SII and SIII in potato crops, were more sensitive to deficit irrigation compared to other stages. According to the obtained results, in the case of water abundance conditions, the treatment WII SI can be applied to obtain the highest water crop productivity. In conditions of water scarcity, it becomes necessary to apply the treatment WIII SIII to obtain the highest crop water productivity.

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Improving of Feldspar Efficiency As Potassium Fertilization For Potato (Salenum Tuberosumi) By Using Silicate Dissolving Bacteria And Compost

Shabrawy

2019

Annals of Agricultural Science, Moshtohor

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A field experiment was carried out at newly reclaimed land at El-Wady Co: Farm West of Wady El-Natron, El-Bohera Governorate, Egypt during the summer season of 2015 to evaluate the effect of different levels of mineral potassium sulphate and natural rock K and their combination under some bio-activators (without addition of bioactivators, with silicate dissolving bacteria and 10 ton compost/fed) on potato plant. The results reveal that increasing potassium level improved all of the studied growth parameter (shoots fresh and dry weights/plant), yield components (number of tubers/plant and mean tuber weight), yields (shoots and tuber fresh and dry yields ton/fed) and N, P and K uptake in tuber and shoots. Addition of feldspar enhanced all of the studied growth paramters, yield and its components and N P K uptake, Combination of 75% of the recmmonded rate of potassium sulphate with 25% feldspar gave all of the studied quality and quantity parameters equal to those obtained under 100% potassium sulphate. Bio-activators enhanced all of the abovementioned studied parameters. Compost was more effective than silicate dissolving bacteria in its effect on potato quality and quantity. The treatment of 75% of the recommended rate of potassium sulphate + 25% feldspar + 10 ton/fed compostgave the highest values of potato quality and quantity parameters.Key words : Potato, feldspar, potassium sulphate, silicate dissolving bacteria, compost, growth, yield and NPK uptake. 186EL Shabrawy, R.M.I.et al .

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Effect of Phosphate and Potassium Fertilizer Rates on Potato Plants Grown under Water Stress Conditions

Cited by 4 publications

References 14 publications

Comparison between organic and mineral sources of potassium and their effects on potassium fractions in clay soil and productivity of potato plants under water stress conditions

Comparison between organic and mineral sources of potassium and their effects on potassium fractions in clay soil and productivity of potato plants under water stress conditions

Effect of Water Deficiency in Different Stages of Potato (Solanum tuberosum L.) Growth

Improving of Feldspar Efficiency As Potassium Fertilization For Potato (Salenum Tuberosumi) By Using Silicate Dissolving Bacteria And Compost

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