Managing soil fertility and health for quinoa production and weed control in organic systems

被引：9

作者：

Buckland, K. R. ^{[1
,3
]}

Reeve, J. R. ^{[1
]}

Creech, J. Earl ^{[1
]}

Durham, Susan L. ^{[2
]}

机构：

[1] Utah State Univ, Dept Plants Soils & Climate, 4820 Old Main Hill, Logan, UT 84322 USA

[2] Utah State Univ, Ecol Ctr, 5205 Old Main Hill, Logan, UT 84322 USA

[3] Oregon State Univ, North Willamette Res & Extens Ctr, 15210 NE Miley Rd, Aurora, OR 97002 USA

来源：

SOIL & TILLAGE RESEARCH | 2018年 / 184卷

基金：

美国农业部;

关键词：

quinoa; Inter-crop; Compost; BETA-GLUCOSAMINIDASE ACTIVITY; COVER CROPS; CORN PRODUCTION; GREEN MANURE; DURUM-WHEAT; SWEET CORN; YIELD; RHIZOSPHERE; CULTIVATION; MANAGEMENT;

D O I：

10.1016/j.still.2018.07.001

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

Quinoa (Chenpodium quinoa Wild.) could provide a high value crop for organic cropping systems in the Intermountain Western US. This study evaluated quinoa in three cover cropping systems [strip crop (SC), undersown clover (UC), or winter cover crop and tillage (T)] with and without compost (+ C or -C) in a split-plot with blocks design. Quinoa produced no seed in 2013 and limited seed in 2014, likely due to excessive temperatures during flowering. Compost increased seed yield in 2014, and in both years, increased total biomass and improved soil health measures. Seed and biomass yield was greater in T than UC on a land-equivalent basis but SC was greatest on a per harvest area basis. Cropping system effects on soil health measures were minimal. However, microbial biomass increased in all systems over time, yet was diminished in the tillage system. Quinoa may be an alternative crop for organic systems provided sufficient nitrogen and phosphorous fertility is available, and yields can be stabilized by identifying heat tolerant varieties before widespread adoption of this crop is feasible.

引用

页码：52 / 61

页数：10

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