Shaheen, A., Abdel Aal, F., Ahmed, A., Rezk, F. (2009). THE INFLUENCE OFAPPLICATION METHODS OF POTASSIUM FERTILIZATION ON GROWTH, PODS YIELD AND ITS QUALITY OF PEA PLANTS. Journal of Plant Production, 34(12), 11271-11283. doi: 10.21608/jpp.2009.119184
A. M. Shaheen; Faten S. Abdel Aal; A. A. Ahmed; Fatma A. Rezk. "THE INFLUENCE OFAPPLICATION METHODS OF POTASSIUM FERTILIZATION ON GROWTH, PODS YIELD AND ITS QUALITY OF PEA PLANTS". Journal of Plant Production, 34, 12, 2009, 11271-11283. doi: 10.21608/jpp.2009.119184
Shaheen, A., Abdel Aal, F., Ahmed, A., Rezk, F. (2009). 'THE INFLUENCE OFAPPLICATION METHODS OF POTASSIUM FERTILIZATION ON GROWTH, PODS YIELD AND ITS QUALITY OF PEA PLANTS', Journal of Plant Production, 34(12), pp. 11271-11283. doi: 10.21608/jpp.2009.119184
Shaheen, A., Abdel Aal, F., Ahmed, A., Rezk, F. THE INFLUENCE OFAPPLICATION METHODS OF POTASSIUM FERTILIZATION ON GROWTH, PODS YIELD AND ITS QUALITY OF PEA PLANTS. Journal of Plant Production, 2009; 34(12): 11271-11283. doi: 10.21608/jpp.2009.119184
THE INFLUENCE OFAPPLICATION METHODS OF POTASSIUM FERTILIZATION ON GROWTH, PODS YIELD AND ITS QUALITY OF PEA PLANTS
Veg, Res. Division, National Research Centre, Dokki, Cairo, Egypt.
Abstract
Two field trails were conducted out during the season of 2006/2007 and 2007/2008 to study the influence of soil dressing of potassium fertilizer at rates of 100, 200 and 300 kgs./fed. as potassium sulphate (48.5 % K2O) as well as foliar application of liquid potassium contained K2O 36.5 % and sulphure 26.0 % as twice and/or 3 times) on growth, yield and its quality of pea plant. The important findings are as follows:
1. All plant growth parameters recorded their highest values when pea plants received 300 kgs. /of potassium sulphate. The increments in fresh and dry weight of whole plant over that plants which supplied 100 kgs/fed. amounted by 34.9 and 56.9 respectively in 1st season and by 48.6 and 49.3 % for the same respective in 2nd season. Also that pea plants which received liquid potassium 3 time by 10 day intervals gained the vigor plant growth.
2. Pea plants which fertilized by the highest rate of K (300 kgs./fed.) recorded an increase in total and early pods yield over than that plants received medium and low potassium level. The enhancement in total pods weight amounted by 10.01, 34.4 % in 1st season and by 16.1 and 31.1 in 2nd one respectively.
3. The best physical quality of pea pods expressed as average number/plant length and diameter recorded their highest significant values when soil was dressed by 300 kgs./fed. Of potassium sulphate. Moreover, foliar application of pea plant by liquid potassium 3 times gained the heaviest total and early pods yield as well as its best physical quality of pods.
4. With increasing potassium fertilizer of soil dressing and/or the numbers of liquid spraying gained an increase in the nutritional values of pea pods as expressed by protein and carbohydrate content as well as N, P and K.
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