Sarhad Journal of Agriculture 01/2011; 27.


The experiment was conducted at Hazara Agricultural Research Station, Abbottabad, Pakistan during the year 2004-05. The most popular variety of potato "Desiree" was analyzed to find out the effect of different doses of NPK on its proximate composition. The results showed that NPK fertilizers had significant effect on nutrient composition of potato. Moisture content was in the range of 68.8 percent in T6 (140:140:210 NPK) to 81.4 percent in T2 (60:60:90 NPK). Crude protein contents were very low in potato, which were from 0.9percent in T1 (control) to 1.4 percent in T6 (140:140:210 NPK). Percent fats of potato dropped off by increasing the doses of NPK. Fat was lowest as 0.4 percent in T7 (160:160:240) and highest as 1.2 percent in T1 (control). The crude fiber in potato is enhanced by rising amount of NPK. The crude fiber and ash content were ranging from 1.99 (T5) to 3.59 (T7) percent and 3.68 (T7) to 5.18 (T5) percent respectively. From above results it is commended that right amount of NPK fertilizers should be applied to gain high yield and nutritious product.. 2011. Effect of different levels of NPK fertilizers on the proximate composition of potato crop at Abbottabad. Sarhad J. Agric.

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    • "The highest starch yield (13.50%) was observed at 4 t/ha application of poultry manure. Dry matter contents are associated with the amounts of starch, proteins, fat, fibre and mineral constituents present (Falak et al, 2011). The dry matter content of the bulbils of D. bulbifera ranged from 22.28 – 32.67%. "
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    ABSTRACT: An experiment was conducted to evaluate the effect of various levels of poultry manure application on the nutritional value and functional properties of Dioscorea bulbifera. The experiment was a randomised complete block design on a plot size of 8 m2 with a planting space of 50 cm × 1 m, using 5 levels of poultry manure: 0, 1, 2, 3 and 4 tonnes/ hectare. Standard analytical methods were used to determine the proximate and mineral composition as well as the functional properties of the bulbils. Poultry manure application significantly increased the starch content. The highest starch yield (13.50%) was observed at 4 tonnes/hectare poultry manure application. The dry matter and fat contents were not significantly affected by poultry manure application. Crude fibre, ash and crude protein contents were significantly affected by poultry manure application. Ash content ranged from 3.41 - 4.68% with 4 t/ha level of application having the highest ash content. The crude protein content ranged from 2.48 - 6.28%. The highest crude protein content was observed at 3 t/ha. The total carotenoid content was not significantly affected by poultry manure application. The phosphorus, calcium and magnesium contents were significantly affected by poultry manure application. Water and oil absorption capacity increased with increase in the level of poultry manure while the bulk density was not significantly affected by the level of poultry manure. Application of poultry manure was found to significantly influence the nutrient content and functional properties of D. bulbifera.
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    ABSTRACT: The influence of sowing time and potato propagules on yield and quality of potato was carried out at Agricultural Research Institute, Tarnab, Peshawar during the year 2005-06. Potato tuberlets were developed from Hybrid TPS, OP-TPSand Tissue culture and evaluated against seed tubers for plant growth, yield and tuber quality. The tuberlets from hybrid TPS had significantly higher percent sprouting (92.767%), plant height (65.783 cm), soil cover (91.250 cm2), number of leaves per hill (35.67) and yield (39.126 ton ha-1) with the minimum disease incidence (0.15%), followed by mini-tubers and OPTPS. The seed tubers had significantly high disease incidence (23.17%) and lower yield (11.414 ton ha-1) but had high tuber quality high TDS (6.242%), dry matter (23.176%) and specific gravity (1.393). Most of the parameters were none significantly affected by sowing on September 15th or September 22nd but plant height, soil cover, leaves per hill and yield declined with delaying sowing to October 8th
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    Pakistan Journal of Botany 09/2013; · 0.82 Impact Factor