![]() ![]() Averaged over years and soil inversion, the crimson clover produced maximum cover biomass (4390 kg ha−1 fb cereal rye (3698 kg ha−1 and winter fallow (777 kg ha−1. Subplots were three cover treatments: crimson clover, cereal rye or none (i.e., winter fallow and the sub subplots were four secondary spring tillage methods: disking followed by (fb cultivator (DCU, disking fb chisel plow (DCH, disking fb disking (DD and no tillage (NT. Main plots were two soil inversion treatments: fall inversion tillage (IT and non-inversion tillage (NIT. Primary, Secondary and Conservation Tillageįull Text Available A three year field experiment was conducted to evaluate the role of soil inversion, cover crops and spring tillage methods for Palmer amaranth between-row (BR and within-row (WR management in glufosinate-resistant cotton. Integrated Palmer Amaranth Management in Glufosinate-Resistant Cotton: II. ![]() The results indicate a possible small competitive disadvantage associated with glyphosate resistance, but observed differences among biotypes might also be associated with characteristics within and among biotypes other than glyphosate resistance. When Palmer amaranth biotypes were grouped by response to glyphosate, the GS group reduced fresh weight, dry weight, and yield of soybean more than the GR group. Soybean yield was reduced 21% by Palmer amaranth at the established field density of 0.37 plant m−2. ![]() Reduction in soybean fresh weight and dry weight in the greenhouse and soybean yield in the field varied by Palmer amaranth biotypes. The six Palmer amaranth biotypes reduced soybean height similarly in the greenhouse but did not affect soybean height in the field. ![]() A field experiment over 2 years compared season-long interference of these biotypes in soybean. Early season interference in soybean for 40 days after emergence by three glyphosate-resistant (GR and three glyphosate-susceptible (GS Palmer amaranth biotypes from Georgia and North Carolina was compared in the greenhouse. has become difficult to control in row crops due to selection for biotypes that are no longer controlled by acetolactate synthase inhibiting herbicides and/or glyphosate. Interference of Selected Palmer Amaranth (Amaranthus palmeri Biotypes in Soybean (Glycine maxĭirectory of Open Access Journals (Sweden)įull Text Available Palmer amaranth (Amaranthus palmeri S. The Palmer Drought Severity Index (PDSI) is devised by Palmer (1965) to represent the severity of dry and wet spells over the U.S. National Oceanic and Atmospheric Administration, Department of Commerce — PDSI from the Dai dataset. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |