Peanut Response to Conservation Tillage Systems
2006
Grichar, W James
Field studies were conducted during the 2003 and 2004 growing seasons in the south Texas peanut-growing area to compare yield and quality of peanut (Arachis hypogaea L.) among three conservation tillage systems (strip-till, reduced-till, and terra-till) and a conventional tillage system. The strip-tillage system produced the lowest peanut yields and net returns in both years of the study, while the terra-till system produced yields and net returns comparable to the conventional tillage system. Since the soils at this location were high in sand content (> 70%), compaction was not a problem. However, in 2003, digging of the strip-tillage plot was a problem. Peanuts in the strip-tillage system were planted flat compared with the other systems and the blades of the peanut digger were not able to penetrate far enough into the ground to dig all the peanut pods. Therefore, many pods were pulled off the vine or left in the soil during the digging operation. In 2004, the blades of the peanut digger were adjusted to reduce this problem but peanut yield in this system was still low.
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