國立虎尾科技大學 |

Reduced-Rate Herbicide Combinations for Living Mulch and Weed Management in a Vegetable Crop.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Reduced-Rate Herbicide Combinations for Living Mulch and Weed Management in a Vegetable Crop./
Author:	Bhaskar, Vinay.
Description:	1 online resource (129 pages)
Notes:	Source: Dissertation Abstracts International, Volume: 78-11(E), Section: B.
Contained By:	Dissertation Abstracts International78-11B(E).
Subject:	Agronomy. -
Online resource:	click for full text (PQDT)
ISBN:	9780355033007

Reduced-Rate Herbicide Combinations for Living Mulch and Weed Management in a Vegetable Crop.
Bhaskar, Vinay.

Reduced-Rate Herbicide Combinations for Living Mulch and Weed Management in a Vegetable Crop. - 1 online resource (129 pages)

Source: Dissertation Abstracts International, Volume: 78-11(E), Section: B.

Thesis (Ph.D.)--Cornell University, 2017.

Includes bibliographical references

There is increasing interest in improving the sustainability of our farming systems. Living mulch systems can contribute to these advancements by increasing diversity and resource use efficiency, eliminating inter-row cultivations, and by reducing soil erosion by rapidly providing soil cover. However, competition with the cash crop and unreliable weed control are major challenges for the adoption of living mulches. The goal of this research was to evaluate reduced rates of herbicides as a tool for alleviating these drawbacks. It was hypothesized that the combination of living mulches and herbicides can complement each other to reduce both living mulch vigor and herbicide inputs, without compromising weed control efficacy or crop yield. Field trials were conducted during three growing seasons (2014-2016), at the Homer C. Thompson Vegetable Research Farm, in Freeville, NY, using sesbania and sunnhemp as living mulches in tomato. In 2015, there was a positive relationship between tomato yield and living mulch biomass. This relationship, however, was negative in 2016. These contrasting results were likely due to competition for water, with wet conditions occurring in 2015 and dry conditions occurring in 2016. Compared with the untreated living mulch check, the herbicide treatments reduced tomato yield losses by up to 71% in 2015 and 51% in 2016. Up to 2.5 tons ha --1 of dry matter was generated by the living mulches during both 2015 and 2016, with an average ground cover of 65% in 2015 and 85% in 2016. Weed biomass was reduced by as much as 97% by the living mulch-herbicide combinations. Our findings suggest that including reduced-rate herbicide applications in living mulch systems is effective in suppressing weeds without compromising living mulch biomass, soil cover, or crop yield, thereby enhancing the overall feasibility of living mulch systems.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780355033007Subjects--Topical Terms:

1027735
Agronomy.
Index Terms--Genre/Form:

554714
Electronic books.

Reduced-Rate Herbicide Combinations for Living Mulch and Weed Management in a Vegetable Crop.
LDR:03146ntm a2200349Ki 4500 001 917188
005 20181009045509.5
006 m o u
007 cr mn||||a|a||
008 190606s2017 xx obm 000 0 eng d
020 $a 9780355033007
035 $a (MiAaPQ)AAI10280192
035 $a (MiAaPQ)cornellgrad:10308
035 $a AAI10280192
040 $a MiAaPQ $b eng $c MiAaPQ $d NTU
100 1 $a Bhaskar, Vinay. $3 1191154
245 1 0 $a Reduced-Rate Herbicide Combinations for Living Mulch and Weed Management in a Vegetable Crop.
264 0 $c 2017
300 $a 1 online resource (129 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Dissertation Abstracts International, Volume: 78-11(E), Section: B.
500 $a Adviser: Stephen Reiners.
502 $a Thesis (Ph.D.)--Cornell University, 2017.
504 $a Includes bibliographical references
520 $a There is increasing interest in improving the sustainability of our farming systems. Living mulch systems can contribute to these advancements by increasing diversity and resource use efficiency, eliminating inter-row cultivations, and by reducing soil erosion by rapidly providing soil cover. However, competition with the cash crop and unreliable weed control are major challenges for the adoption of living mulches. The goal of this research was to evaluate reduced rates of herbicides as a tool for alleviating these drawbacks. It was hypothesized that the combination of living mulches and herbicides can complement each other to reduce both living mulch vigor and herbicide inputs, without compromising weed control efficacy or crop yield. Field trials were conducted during three growing seasons (2014-2016), at the Homer C. Thompson Vegetable Research Farm, in Freeville, NY, using sesbania and sunnhemp as living mulches in tomato. In 2015, there was a positive relationship between tomato yield and living mulch biomass. This relationship, however, was negative in 2016. These contrasting results were likely due to competition for water, with wet conditions occurring in 2015 and dry conditions occurring in 2016. Compared with the untreated living mulch check, the herbicide treatments reduced tomato yield losses by up to 71% in 2015 and 51% in 2016. Up to 2.5 tons ha --1 of dry matter was generated by the living mulches during both 2015 and 2016, with an average ground cover of 65% in 2015 and 85% in 2016. Weed biomass was reduced by as much as 97% by the living mulch-herbicide combinations. Our findings suggest that including reduced-rate herbicide applications in living mulch systems is effective in suppressing weeds without compromising living mulch biomass, soil cover, or crop yield, thereby enhancing the overall feasibility of living mulch systems.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Agronomy. $3 1027735
650 4 $a Horticulture. $3 1058420
650 4 $a Agriculture. $3 660421
655 7 $a Electronic books. $2 local $3 554714
690 $a 0285
690 $a 0471
690 $a 0473
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a Cornell University. $b Horticultural Biology. $3 1183395
773 0 $t Dissertation Abstracts International $g 78-11B(E).
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10280192 $z click for full text (PQDT)