Response of maize root growth to irrigation and nitrogen management strategies in semi-arid loamy sandy soil
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- 作者：Mario Chilundoa ; b ; mchilundo@gmail.com" class="auth_mail" title="E-mail the corresponding author ; mario.chilundo@slu.se" class="auth_mail" title="E-mail the corresponding author ; Abraham Joelb ; Ingrid Wesströ ; mb ; Rui Britoa ; Ingmar Messingb
- 关键词：CP-hw ; cropping period during the hot-wet season ; CP-cd ; cropping period during the cold-dry season ; D ; drip irrigation ; F ; furrow irrigation ; FC ; field capacity ; If ; full irrigation to meet at least the crop water requirements ; Ir ; reduced irrigation (75% of If) ; Nq ; quick-release nitrogen fertiliser ; Ns ; slow-release nitrogen fertiliser ; RD ; root density (number of roots 100 ; cm&minus ; 2) ; WP ; wilting point
- 刊名：Field Crops Research
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：200
- 期：Complete
- 页码：143-162
- 全文大小：3022 K
文摘
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Irrigation method explained the variation in root density (RD) and maximum rooting depth (MR).
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Slow-release N fertiliser gave higher RD than quick-release N fertiliser in cold-dry seasons.
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Interactions between irrigation method, irrigation level and N fertiliser type did not explain the variation in RD or MR.
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Higher RD tended to result in higher maize grain yield.