FORMS OF MECHANIZATION AND SOIL MANAGEMENT FOR THE POTATO CULTURE II - CROP VEGETATIVE DEVELOPMENT

作者：Saito Larissa R^*; Jadoski Sidnei O; Maggi Marcio F; Sales Livia L S R; Suchoronczeck Adriano

来源：Engenharia Agricola, 2013, 33(5): 993-1002.

• soil preparation
• types of stubble
• Trichoderma harzianum
• infestation
• leaf area

The objective was to study the effects of management with different forms of tillage, reservoir types and soil infestation with the fungus Trichoderma harzianum Rifai over the characteristics of canopy components of potato. The experiment was structured in a completely randomized design with split plots in a 4 x 5 x 2 factorial with four replications. For factor 1 it was evaluated four types of tillage - (P): base tillage (scarifiation and harrowing furrowing) - P1, base tillage plus disc harrow - P2, rotary hoe plus basic tillage - P3 and base tillage plus disc harrow and rotary hoe - P4. In Factor 2 it was used the stubble of oats, corn, wheat, beans and a control without stubble. The Factor 3 was constituted by no infestation or infestation of soil with the fungus T. harzianum. The variable length of the longest stem and index of leaf area (IAF) were affected by the treatment with the fungus T. harzianum. IAF presented also different length over the cycle in relation to the soil cover with corn stubble. The highest soil inversion in the initial tillage reduces the production of dry matter of the potato crop shoot.

• 出版日期2013-10