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Asian Journal of Soil Science and Plant Nutrition

Asian Journal of Soil Science and Plant Nutrition, XXXX,Vol.: 1, Issue.: 3

 

Original-research-article

 

Relationship between the Absorption Behavior of Iron and Silicon by Plant and the Macronutrients Affected by Some Sandy Soil Additives

 

 

Rama T. Rashad1*

1Soils, Water and Environment Research Institute, Agricultural Research Center, Giza, Egypt.

 

Abstracts

 

Aims: A field experiment was carried out to study the relationship between the plant content of iron (Fe) and/or silicon (Si) and the macronutrients under the sandy soil conditions in presence of soil additives different in their effect on the nutrient’ availability.

Place and Duration of Study: A field experiment for two successive seasons (Sesame in summer season 2015 and wheat in winter season 2016) in sandy soil of the Ismailia Agricultural Research Station - Egypt.  

Methodology: Separate single rates of 1190.48 kg/ha for rice straw, cellulose, silica were mixed with the soil surface before cultivation and then covered with a thin layer of soil. Sesame seeds and/or wheat grains were hand sown and planted as recommended. At harvest, the seeds and grains were analyzed for N, P, K, Si and Fe, as well as the soil available N, P, K after harvesting each crop.

Study Design: Single levels of rice straw, cellulose, silica, and K-humate were applied in a completely randomized design. 

Results: Treatments decreased the Fe content in seeds in the order Control > silica > rice straw > K-humate > cellulose. The content of Fe in grains was enhanced by treatments compared to the control in the direction: K-humate > silica > rice straw > cellulose > control.

Si content in sesame seeds was inhibited affected by the treatments compared to the control in the order: Control > rice straw > K-humate > silica > cellulose.    

Conclusion: Positive correlation coefficient (r) exists between Fe and/or Si content and the total NPK in the sesame seeds but an irregular trend was observed for wheat grains. Also, positive correlation exists between Fe and Si percents in both sesame and wheat during the successive seasons with higher for wheat than sesame.

The correlation with the available NPK was positive (r) for the seeds’ Fe content but negative for the Si content while an irregular trend was observed for wheat grains.

 

Keywords :

Iron; nutrients’ content; silicon; sandy soil; soil additives.

 

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