تاثیر معدل النيتروجين تحت الظروف البعلية والري التكميلي على نمو القمح الصلب ( Triticum durum ) وإنتاجيته ومكوناتها

N. A.

doi:10.54172/mjsc.v2i1.450

Article Details

تاثیر معدل النيتروجين تحت الظروف البعلية والري التكميلي على نمو القمح الصلب ( Triticum durum ) وإنتاجيته ومكوناتها

Authors:

N. A.

Publisher:

Omar Al-Mukhtar University

Journal:

Al-Mukhtar Journal of Sciences Vol.2 Issue 1, pp.47-58

Document Type:

Article

Publication Date:

12/1995

Document Language:

Arabic

Document ID (Org No.):

2001391048

pISSN:

3006-6352

DOI:

10.54172/mjsc.v2i1.450

Keywords:

Abstract:

 A total of 2953 production records from Ghot Al-Sultan dairy cattle unit were used. The differences between foreign and local management in addition to some general environmental factors on 3X305 , 2X305 and average daily milk production were studied. The results showed the existence of significant differences (P<0.01) between the two regimes of management for all three traits and in the first two lactations. The 2X305 milk production for the three lactations was 6657.7 +30.7, 7740.250.0 and 7922.767.1. Least squares means for 3X305 milk productuion were 8018.7+37.0,9108.9458.7, 9112.5+77.3 kg. Daily average was 24.8+0.13 , 29.0+0.21 , and 28.8+0.26 for the three lactations consecutively. In addition, seasons within years effects were significant (P<0.05) for both 3X305 and 2X305 production in the third lactation. The effect of the linear regression on age at calving was significant (P<0.01) in the second lactation for 3X305 and 2X305 production. Linear regression on months of the year was significant (P<0.01) in the first lactation only for the three traits.

Article Details

تاثیر معدل النيتروجين تحت الظروف البعلية والري التكميلي على نمو القمح الصلب ( Triticum durum ) وإنتاجيته ومكوناتها

Authors:

N. A.

Publisher:

Omar Al-Mukhtar University

Journal:

Al-Mukhtar Journal of Sciences Vol.2 Issue 1, pp.47-58

Document Type:

Article

Publication Date:

12/1995

Document Language:

Arabic

Document ID (Org No.):

2001391048

pISSN:

3006-6352

DOI:

10.54172/mjsc.v2i1.450

المقدرة الانتاجية

لابقار الهولشتين-فریزیان

الظروف الليبية

Issues

Article Details

تاثیر معدل النيتروجين تحت الظروف البعلية والري التكميلي على نمو القمح الصلب ( Triticum durum ) وإنتاجيته ومكوناتها

Authors: N. A.

Publisher: Omar Al-Mukhtar University

Journal: Al-Mukhtar Journal of Sciences Vol.2 Issue 1, pp.47-58

Document Type: Article

Publication Date: 12/1995

Document Language: Arabic

Document ID (Org No.): 2001391048

pISSN: 3006-6352

DOI: 10.54172/mjsc.v2i1.450

المقدرة الانتاجية

لابقار الهولشتين-فریزیان

الظروف الليبية

Issues

Authors:

N. A.

Publisher:

Omar Al-Mukhtar University

Journal:

Al-Mukhtar Journal of Sciences Vol.2 Issue 1, pp.47-58

Document Type:

Article

Publication Date:

12/1995

Document Language:

Arabic

Document ID (Org No.):

2001391048

pISSN:

3006-6352

DOI:

10.54172/mjsc.v2i1.450