Abstract
A field experiments were carried out at El-Wanysa village, Itsa district, El-Fayoum Governorate during two successive seasons of 2007 and 2008. The current work aimed to study the effect of both organic (compost) and inorganic nitrogen (ammonium sulphate) fertilizers and their combination on maize growth, yield and its components as well as grain contents of protein, oil and some nutrients The obtained results could be summarized into: - Concerning the nitrogen sources, it seems that the combined treatment of N-organic +N-mineral gave the greatest values for yield and its components, NPK concentration and it's uptake by maize plant. Also, the values of chlorophyll a, b, total chlorophyll content, ear length, ear diameter, ear weight, grain weight/ear, number of row/ear, number of grain/row, 100-grain weight and grain yield (ardab/fed.) were significantly increased by increasing nitrogen levels. - Increasing nitrogen fertilizer rates up to 120 kg N/fed. significantly increased nitrogen concentration and its uptake as well as protein content. - Phosphorus concentration and its uptake were significantly increased by applying 120 kg N/fed. - Oil percentage, oil yield and grain total carbohydrate percentage increased significantly as N level was increased up to 120 kg N/fed. - Concerning the interaction effect between nitrogen sources and it's levels, it could be noticed that the ammonium sulphate + compost mixture treatment at 120 kg N/fed. was the better treatment due to its positive effect on grain yield and its components. - It may be concluded that the application of compost combined with inorganic nitrogen was more effective on yield and its components of maize plant as compared to the addition of mineral nitrogen or compost alone. This may be the positive effect of organic manure on the physico-chemical properties, besides it attains a pronounced content of essential nutrients, especially micronutrients. - In general using organic manure improved yield and saved considerable amount of required mineral fertilizers which may decreased the chemical pollution of environment.
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Claims 14
Claim · model-written summary
Combined organic and mineral nitrogen gave the greatest maize yield and yield components.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“combined treatment of N-organic +N-mineral gave the greatest values for yield and its components”
t0“MAIZE”
Claim · model-written summary
Combined organic and mineral nitrogen gave the greatest maize NPK concentration and uptake.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“combined treatment of N-organic +N-mineral gave the greatest values for yield and its components, NPK concentration and it's uptake by maize plant”
Claim · model-written summary
Increasing nitrogen levels raised maize chlorophyll a, b, and total chlorophyll content.
- Treatment
- increasing nitrogen levelse0
- Outcome
- chlorophyll a, b, total chlorophyll contente0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chlorophyll a, b, total chlorophyll content, ear length, ear diameter, ear weight, grain weight/ear, number of row/ear, number of grain/row, 100-grain weight and grain yield (ardab/fed.) were significantly increased by increasing nitrogen levels”
t0“MAIZE”
Claim · model-written summary
Increasing nitrogen levels raised maize ear length, diameter, and weight.
- Treatment
- increasing nitrogen levelse0
- Outcome
- ear length, ear diameter, ear weighte0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ear length, ear diameter, ear weight, grain weight/ear, number of row/ear, number of grain/row, 100-grain weight and grain yield (ardab/fed.) were significantly increased by increasing nitrogen levels”
t0“MAIZE”
Claim · model-written summary
Increasing nitrogen levels raised maize grain weight per ear, rows per ear, and grains per row.
- Treatment
- increasing nitrogen levelse0
- Outcome
- grain weight/ear, number of row/ear, number of grain/rowe0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain weight/ear, number of row/ear, number of grain/row, 100-grain weight and grain yield (ardab/fed.) were significantly increased by increasing nitrogen levels”
t0“MAIZE”
Claim · model-written summary
Increasing nitrogen levels raised maize 100-grain weight and grain yield.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“100-grain weight and grain yield (ardab/fed.) were significantly increased by increasing nitrogen levels”
t0“MAIZE”
Claim · model-written summary
Nitrogen fertilizer up to 120 kg N/fed. increased maize nitrogen concentration and uptake.
- Treatment
- nitrogen fertilizer rates up to 120 kg N/fed.e0
- Outcome
- nitrogen concentration and its uptakee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing nitrogen fertilizer rates up to 120 kg N/fed. significantly increased nitrogen concentration and its uptake as well as protein content”
t0“MAIZE”
Claim · model-written summary
Nitrogen fertilizer up to 120 kg N/fed. increased maize protein content.
- Treatment
- nitrogen fertilizer rates up to 120 kg N/fed.e0
- Outcome
- protein contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing nitrogen fertilizer rates up to 120 kg N/fed. significantly increased nitrogen concentration and its uptake as well as protein content”
t0“MAIZE”
Claim · model-written summary
Applying 120 kg N/fed. increased maize phosphorus concentration and uptake.
- Treatment
- applying 120 kg N/fed.e0
- Outcome
- Phosphorus concentration and its uptakee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus concentration and its uptake were significantly increased by applying 120 kg N/fed.”
t0“MAIZE”
Claim · model-written summary
Nitrogen levels up to 120 kg N/fed. increased maize oil percentage and oil yield.
- Treatment
- N level was increased up to 120 kg N/fed.e0
- Outcome
- Oil percentage, oil yielde0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oil percentage, oil yield and grain total carbohydrate percentage increased significantly as N level was increased up to 120 kg N/fed.”
t0“MAIZE”
Claim · model-written summary
Nitrogen levels up to 120 kg N/fed. increased maize grain total carbohydrate percentage.
- Treatment
- N level was increased up to 120 kg N/fed.e0
- Outcome
- grain total carbohydrate percentagee0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oil percentage, oil yield and grain total carbohydrate percentage increased significantly as N level was increased up to 120 kg N/fed.”
t0“MAIZE”
Claim · model-written summary
Ammonium sulphate with compost at 120 kg N/fed. was the better treatment for maize grain yield and its components.
- Treatment
- ammonium sulphate + compost mixture treatment at 120 kg N/fed.e0
- Outcome
- grain yield and its componentse0
- Direction
- bettere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ammonium sulphate + compost mixture treatment at 120 kg N/fed. was the better treatment due to its positive effect on grain yield and its components”
t0“MAIZE”
Claim · model-written summary
Compost combined with inorganic nitrogen was more effective for maize yield than either fertilizer alone.
- Treatment
- compost combined with inorganic nitrogene0
- Outcome
- yield and its componentse0
- Direction
- more effectivee0
- Comparator
- mineral nitrogen or compost alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of compost combined with inorganic nitrogen was more effective on yield and its components of maize plant as compared to the addition of mineral nitrogen or compost alone”
Claim · model-written summary
The authors conclude that organic manure improved maize yield and saved mineral fertilizer.
- Outcome
- improved yield and saved considerable amount of required mineral fertilizerse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“using organic manure improved yield and saved considerable amount of required mineral fertilizers”
t0“MAIZE”
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