The effect of vermicompost, urea, and seaweed extracts on growth and yield characteristics of yellow maize (zea mays l. )‎

الملخص EN

In order to study the effect of adding vermicompost fertilizer, seaweed extracts, and nitrogen fertilizer on the growth and yield characteristics of maize.

An experiment was carried out in one of the farms located in Nouriya district - Al-Diwaniyah governorate - Iraq during the autumn season 2019-2020.

The experiment was applied in the order of global trials according to the design of randomized full sectors and with three replications.

The first factor included adding vermicompost fertilizer in three levels (0, 2 and 4 tons H-1) coded A0, A1 and A2 respectively, while the second factor included adding seaweed extract at two levels (0 and 40 kg H-1) symbolized for B0 and B1 respectively, while the third factor included adding nitrogen fertilizer in three levels (0, 120 and 240 kg N H-1) coded as C0, C1 and C2, respectively.

The results of the experiment showed: The levels of vermicompost differed significantly in most of the studied characterizes, as the A1 level achieved the highest results for leaf content of chlorophyll, dry weight of the root and vegetable group, total yield, and the percentage of protein in grains (45.86 SPAD, 11.641 and 57.13 gm plant -1 11.299 Mg H -1 12.30 % ), respectively, while level A2 achieved the highest value of plant height (354.1 cm plant -1).

The treatment of adding seaweed extracts B1 significantly affected most of the studied characterizes and gave the highest results for leaf content of chlorophyll, plant height, dry weight of root and vegetative group, total yield and percentage of protein (43.70 SPAD, 335.7 cm plant-1, 10.983 and 54.73 gm.

plant-1 and 10.361 Mg H-1 and 11.18% ), respectively.

The treatment of adding C1 nitrogen fertilizer was significantly higher with the highest results for leaf content of chlorophyll, plant height, dry weight of root and vegetable group, total yield and protein content in grains (45.51 SPAD, 345.8 cm plant-1, 11.054, 56.57 gm.

plant-1 and 10.500 Mg.

H-1 and 11.50% ) respectively.

The research is part of MCs for 2nd authorCorresponding author: E-mail(Zzaah94@gmail.

com ) Al- Muthanna University All rights In order to study the effect of adding vermicompost fertilizer, seaweed extracts, and nitrogen fertilizer on the growth and yield characteristics of maize.

An experiment was carried out in one of the farms located in Nouriya district - Al-Diwaniyah governorate - Iraq during the autumn season 2019-2020.

The experiment was applied in the order of global trials according to the design of randomized full sectors and with three replications.

The first factor included adding vermicompost fertilizer in three levels (0, 2 and 4 tons H-1) coded A0, A1 and A2 respectively, while the second factor included adding seaweed extract at two levels (0 and 40 kg H-1) symbolized for B0 and B1 respectively, while the third factor included adding nitrogen fertilizer in three levels (0, 120 and 240 kg N H-1) coded as C0, C1 and C2, respectively.

The results of the experiment showed: The levels of vermicompost differed significantly in most of the studied characterizes, as the A1 level achieved the highest results for leaf content of chlorophyll, dry weight of the root and vegetable group, total yield, and the percentage of protein in grains (45.86 SPAD, 11.641 and 57.13 gm plant -1 11.299 Mg H -1 12.30 % ), respectively, while level A2 achieved the highest value of plant height (354.1 cm plant -1).

The treatment of adding seaweed extracts B1 significantly affected most of the studied characterizes and gave the highest results for leaf content of chlorophyll, plant height, dry weight of root and vegetative group, total yield and percentage of protein (43.70 SPAD, 335.7 cm plant-1, 10.983 and 54.73 gm.

plant-1 and 10.361 Mg H-1 and 11.18% ), respectively.

The treatment of adding C1 nitrogen fertilizer was significantly higher with the highest results for leaf content of chlorophyll, plant height, dry weight of root and vegetable group, total yield and protein content in grains (45.51 SPAD, 345.8 cm plant-1, 11.054, 56.57 gm.

plant-1 and 10.500 Mg.

H-1 and 11.50% ) respectively.

The research is part of MCs for 2nd authorCorresponding author: E-mail(Zzaah94@gmail.

com ) Al- Muthanna University All rights reserved