Impacts upon cultural techniques on root system development and consequences on durum yields. Proposal of mathematical models for yield assessment

D. Bentahar, M. Amara, M.A. Feddal

Abstract


Abstract: This work is the main part of a research program entitled: issue of simplified cultural techniques introduction in Algeria. The purpose was to analyse effects of tillage and direct sowing on evolution of soil structure and consequences on root development and on durum yield. And establish a mathematical model which allows quantifying yield in relationship with physical and mechanical parameters of the soil and to different factors linked to cultivation. Results of different tests showed clearly that the used technique has a certain effect on moisture development, porosity and soil penetrometer resistance. Water content in the soil is better stored with direct seeding. Porosity is more important with direct seeding. As for soil penetrometer resistance, soil is more resistant on plot with direct seeding. The penetrometer resistance is also highly conditioned by water content. Results obtained show that the root system is more developed on worked plots with the conventional method than on those worked in direct seeding. Quality of grains is better at level of plots conventionally worked, which present the best root development, the best porosity and penetrometer resistance favourable resistance test. Therefore, the best yields are recorded at level of the conventional technique with the second dose of seeding. The yield modelling in relation with different parameters studied, gives us the following relationship which remain valid in our tests conditions.

- Conventional technique :=565,42. 

-Direct seeding: 482,47


Full Text:

PDF

References


Jeroni, G.; James, F.; Robert, S.; Hipolito, M. Water relations and stomatal characteristics of Mediterranean plants with different growth forms and leaf habits: responses to water stress and recovery. Plant & Soil 90 (2007) 139–155.

Abdellaoui, Z.; Teskrat, H.; Bel hadj, A.; Zaghouane, O. Étude comparative de l’effet du travail conventionnel, semis direct et travail minimum sur le comportement d’une culture de blé dur dans la zone subhumide. In: Bouzerzour, H. (ed.); Irekti, H. (ed.); Vadon, B. (ed.). 4. Rencontres Méditerranéennes du Semis Direct .Options Méditerranéennes96 (2011) 71-87.

Ibekwe, A.M.; Kennedy, A.C.; Frohne, P.S.; Papiernik, S.K.; Yang, C.-H.; Crowley, D.E.. Microbial diversity along a transect of agronomic zones. FEMS Microbiology Ecology 39 (2002)183-191.

Köller, K. Techniques of Soil Tillage, In A. El Titi, ed. Soil Tillage in Agroecosystems, (2003) 1-25.

Lal, R.; Reicosky, D.C.; Hanson, J.D. Evolution of the plow over 10,000 years and the rationale for no-till farming. Soil and Tillage Research 93(2007) 1-12.

Ferrah, A. G. Effet de trois techniques culturales sur le développement de blé en zone semi-aride. Thèse Ing., de l'Université Mouhamed Boudiaf. M'sila- Algerie (2014).

Huwe, B. The rôle of soil tillage for soil structure, In A. El Titi, ed. Soil Tillage in Agroecosystems, (2003) 27-50.

Richard, G.; Mary, B.; Boizard, H.; Roger-Estrade, J.; Chenu, C. Impacts des techniques culturales sans labour sur le fonctionnement des sols cultivés: composantes physique et organique. Techniques culturales sans labour. éditions CORPEN. Paris (2004).

Dahai, G.; Zhanga, Y.; M. Al-Kaisi, M.; Wanga, Q.; Zhang, M.; Zhaohu, Li. Tillage practices effect on root distribution and water use efficiency of winter wheat under rain-fed condition in the North China Plain. Soil and Tillage Research146 (2014) 286–295.

Amara, M.; Feddal, M.A.; Hamani, A. Analyse du comportement du sol sous l’action de trois techniques de mise en place d’un blé dur (Triticumdurum). Effet sur le développement des racines et conséquences sur le rendement. Nature & Technologie B- Sciences Agronomiques et Biologiques12 (2014) 130-141.


Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License. Copyright UMMB © 2020 University M'hamed Bougara - Boumerdes. Independance AV., Boumerdes, 35000 Algeria, Tel/Fax: +213 24 91 14 98/ +213 2491-29-51