scholarly journals Amount of nitrogen and phosphorus fertilizer required to optimize growth and yield of rice

2021 ◽  
Vol 17 (6) ◽  
pp. 829-835
Author(s):  
B. Ssenyonga Peter ◽  
Yoshiaki Umemiya
Keyword(s):  
Growth And Yield ◽  
Phosphorus Fertilizer ◽  
Nitrogen And Phosphorus

scholarly journals Effect of Mineral Nitrogen and Phosphorus Fertilizer Rates on Marketable Yield and Economic Return of Tomato (Lycopersicon esculentum Mil) at Northwestern Zone of Tigray

2019 ◽  
pp. 1-7
Author(s):  
Yohannes Gebremichael ◽  
Gebremedhen Gebretsadikan
Keyword(s):  
Block Design ◽  
Tomato Fruit ◽  
Ammonium Phosphate ◽  
Growth And Yield ◽  
Northern Ethiopia ◽  
Phosphorus Fertilizer ◽  
Nitrogen And Phosphorus ◽  
Marginal Rate ◽  
Fertilizer Rates ◽  
Different Levels

A field experiment was conducted to study the effect of different nitrogen and phosphorus fertilizer rates on the growth and yield tomato at Northwestern Zone of Tigray during 2016-2017 cropping season under irrigation condition. It  is  the  most  cultivated  and  high  market  value  of  vegetable crops  in  Tigray  Northern Ethiopia. However, tomato production is limited due to low fertility of soil and inappropriate fertilizer rate. Six different levels of nitrogen (0, 23, 46, 69, 92 and 115 kg N /ha) and six different levels of phosphorus (0, 46, 69, 92,115 and 138 kg P2O5/ ha) were used and laid out in randomized complete block design with three replication. (Melkasalsa) tomato variety was used as a testing variety. The current findings showed that the highest marketable tomato fruit yield (61.16 t/ha) were obtained in 115 kg N/ha (250 kg urea/ha) and 92 kg P2O5 (200 kg Di Ammonium Phosphate DAP /ha).  But, the profitable yield obtained was at N2P2 (46 kg N & 69 P2O5 kg ha-1) that is 100 kg/ha of Urea combined with 150 kg/ha of DAP yield was obtained 48.25 t ha-1 and the profit was 235502 birr per ha with the maximum Marginal Rate of Return of 26.16%. Therefore, 100 kg/ha of urea with 150 kg/ha of DAP was recommended for the growers to improve tomato fruit productivity in the study area.

scholarly journals Response of Nitrogen and Phosphorus Fertilizer and Plant Spacing on Growth and Yield Contributing Character of Sunflower

1970 ◽  
Vol 41 (1) ◽  
pp. 33-40 ◽  
Author(s):  
AA Jahangir ◽  
RK Mondal ◽  
Katrun Nada ◽  
Sadia Afoze ◽  
MA Hakim
Keyword(s):  
Seed Yield ◽  
Block Design ◽  
Growth And Yield ◽  
Plant Spacing ◽  
Phosphorus Fertilizer ◽  
Nitrogen And Phosphorus ◽  
Head Diameter ◽  
Randomized Block Design ◽  
Plot Yield ◽  
Number Of Seeds

The plant spacing of 20, 25 and 30 cm were used for the study. The doses of nitrogen and phosphorus were 80, 100, 120 and 45, 60, 75 kg/hectare respectively. The experiment was carried out in a randomized block design with three replications. 20 cm plant spacing produced the highest plot yield. Maximum number of seeds per head and yield were produced by the application of 120 kg N + 75 kg P2O5 per hectare. In case of plant spacing x fertilizer interaction effect, 20 cm plant spacing with 120 kg N + 75 kg P2O5 per hectare treatment produced the highest head diameter and seed yield. Bangladesh J. Sci. Ind. Res. 41(1-2), 33-40, 2006

EFFECTS OF INORGANIC NITROGEN AND PHOSPHORUS FERTILIZERS ON SELECTED SITES OF NATIVE GRASSLAND IN WESTERN CANADA

1965 ◽  
Vol 45 (3) ◽  
pp. 229-237 ◽  
Author(s):  
M. R. Kilcher ◽  
S. Smoliak ◽  
W. A. Hubbard ◽  
A. Johnston ◽  
A. T. H. Gross ◽  
...  
Keyword(s):  
Inorganic Nitrogen ◽  
Total Yield ◽  
First Year ◽  
Western Canada ◽  
Phosphorus Fertilizer ◽  
Nitrogen And Phosphorus ◽  
Native Grass ◽  
Yield Increase ◽  
Native Grassland ◽  
Better Than

N, P, and N + P at 60, 26, and 60 + 26 lb per acre were applied on native grass sites during three successive years at seven, locations in Western Canada. Single applications of the N fertilizer resulted in 3- or 4-year total yield increases of 300 to 600 lb per acre at six locations. At Summerland the 3-year increase was nearly 1400 lb. Phosphorus fertilizer by itself provided very little yield increase. N + P gave yield increases that were only slightly better than those from N alone.Residual responses to fertilizer were important, especially in the 12- to 16-in. rainfall locations. Only about one-third of the total yield increase occurred in the first year, with the remainder coming in the subsequent seasons.Weeds, where present, showed a marked response to fertilizer N in the first season; in subsequent years the response largely disappeared.

scholarly journals Defining Yield Goals and Management Zones to Minimize Yield and Nitrogen and Phosphorus Fertilizer Recommendation Errors

2004 ◽  
Vol 96 (3) ◽  
pp. 1 ◽  
Author(s):  
Jiyul Chang ◽  
David E. Clay ◽  
Charles G. Carlson ◽  
Cheryl L. Reese ◽  
Sharon A. Clay ◽  
...  
Keyword(s):  
Phosphorus Fertilizer ◽  
Nitrogen And Phosphorus ◽  
Management Zones ◽  
Fertilizer Recommendation

scholarly journals Effect of phosphorus fertilizer levels on growth and yield of haricot bean (Phaseolus vulgaris .L.) in South Ommo Zone, Ethiopia

2019 ◽  
Vol 39 (1) ◽  
Author(s):  
Degife Asefa Zebire ◽  
Samuel Gelgelo
Keyword(s):  
Phaseolus Vulgaris ◽  
Growth Parameters ◽  
Block Design ◽  
Growth And Yield ◽  
Phosphorus Fertilizer ◽  
Phaseolus Vulgaris L ◽  
Planting Material ◽  
Rain Season ◽  
Bean Yield ◽  
Important Cash Crop

Haricot bean (Phaseolus vulgaris L.) is an important cash crop and protein source for farmers in many parts of Ethiopia. However, its production is limited by phosphorus fertilizer. Therefore, field experiment was conducted at the Malle woreda in Koybe kebele farmers training center during the main rain season of 2016 to investigate the responses of haricot bean to different levels of phosphorus fertilizer and its effect on growth, and bean yield. Four phosphorus rates (0, 23, 46, and 69kg ha-1) were used as treatments were laid out in a randomized complete block design with three replications. Red Wolaita haricot bean variety was used as planting material. Recommended rate of N (46 kg/ha) was applied to all treatments. The effect of phosphorus was significantly (P less than 0.05) increased bean yield and growth parameters such as leaf area and number of branches per plant, whereas its effect was not significant on plant height. Based on result obtained, application of 46kg P ha-1 is recommended for better production of haricot bean at Malle woreda and similar areas which have the same soil property.

ESTIMATING OF CROP YIELD DEPENDENCE IN CROP ROTATION FROM THE USE OF SAPROPELS, LIME, NITROGEN AND PHOSPHORUS FERTILIZER

2021 ◽  
pp. 13-20
Author(s):  
Igor Vasilievich Sinyavskiy ◽  
Aleksey Mikhailovich Plotnikov ◽  
Andrey Viktorovich Sozinov ◽  
Natalya Dmitrievna Gushchenskaya
Keyword(s):  
Crop Rotation ◽  
Crop Yield ◽  
Phosphorus Fertilizer ◽  
Nitrogen And Phosphorus
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