Persistence and Leaching of Herbicides in Oxisol and Their Efficiency in Suppressing Weed Emergence Flow
Journal Title: International Journal of Plant & Soil Science - Year 2016, Vol 13, Issue 1
Abstract
Aims: The aim of this study was to evaluate the residual effect of herbicides on the flow of emerging plants over time, at different depths of soil in an area of cane sugar over a oxisol. Study Design: In the field, the design was a randomized block with six treatments and four replications. In the greenhouse, the completely randomized design while maintaining the same treatment in the field, In both steps, we used the following herbicides, sulfentrazone, amicarbazone, tebuthiurom, diuron + hexazone, imazapic and control treatment. Place and Duration of Study: The field experiment was carried out at Sugarcane Center in Ribeirão Preto, São Paulo State, Brazil (21°12’00.4”S, 47°52’21.7”W) during the rainy season (setember to march). Methodology: To assess the leaching were used PVC pipe of 10 cm in diameter, longitudinally sectioned, were buried to a depth of 20 cm attempting to maintain the original structure of soil. After fixing the pipes in the ground, were sown seeds of ivy-leaf morning glory (Ipomoea hederifolia) between cane rows, in order to verify the effectiveness of herbicides in controlling this plant daninha. After 90 days, the tubes were removed, separated into halves and placed in greenhouse, where seeds of the test plants rope-glory (Ipomoea hederefolia) lengthwise along the profile of each half of the tubes. At 30 days after sowing, the number of plants was recorded at depths 0-5, 5-10, 10-15 and 15-20 cm. Results: The herbicides sulfentrazone and amicarbazone obtained greater control of Ipomoea hederifolia emergency flow over other treatments. For 0-5 cm deep layer of the herbicides studied showed leaching. The herbicide sulfentrazone showed higher leaching compared to other herbicides in the 0-5 and 5-10 cm deep. Tebuthiuron controlled germination of Ipomoea hederifolia at depths greater than 10cm, Conclusion: The suppressive effect on emergency flow of weeds was observed only superficially.
Authors and Affiliations
Sandro R. Brancalião, Maria Beatriz B. Soares, Carlos A. M. Azânia, Fernando D. Cassanelli
Keywords
Related Articles
- EP ID EP351457
- DOI 10.9734/IJPSS/2016/28406
- Views 83
- Downloads 0
Germination and Growth of the Invasive Weeds Bidens pilosa and Digitaria insularis Regulated by Novel Kaurane Diterpene Amides
Novel kaurane ditepene monoamides were synthesized with good yields, directly from unprotected symmetrical aliphatic and aromatic diamines, hydroxylamines, dichlorophenylamines and ent-kaurenoic acid (1), using a modifie...
Influence of Compost on Incidence and Severity of Okra Mosaic Disease and Fruit Yield and Quality of Two Okra (Abelmoschus esculentus L. Moench) Cultivars
Poor soil fertility, viral diseases and pest infestations are major constraints on the production of okra in Africa. The study was conducted to assess the effectiveness of compost in minimizing okra mosaic disease (OMD),...
Varietal Performance of Napier Fodder (Pennisetum purpureum) Influenced by Nitrogen Fertilizer under Mango Based Agroforestry System
Aims: To observe the varietal performance of Napier fodder influenced by nitrogen fertilizer application under mango tree based agroforestry system. Study Design: The experiment was consisted of two factors RCBD with thr...
Responses of Leaf Stomatal Parameters to Induced Water Stress and its Relationship with Stomatal Conductance in False Horn Plantain
Water deficit is one of the most important environmental factors affecting agricultural production especially in rainfed cropping systems. To understand how morphological and physiological factors interact, a study was c...
Tomato Responses to Bioregulators Grown under Greenhouse Conditions
Aims: Greenhouse contemporaneous horticulture demands a permanent use of new technologies directed to improve yield and fruit quality. Although, the use of bioregulators has made an important contribution to agriculture...