Effect of Combined Use of Brackish Water and Nitrogen Fertilizer on Biomass and Sugar Yield of Sweet Sorghum

T.B.RAMOS; N.L.CASTANHEIRA; M.C.GONCALVES; M.L.FERNANDES; M.I.JANU(A)RIO; M.E.LOURENCO; F.P.PIRES; J.C.MARTINS

首页> 外文期刊>土壤圈（英文版） >Effect of Combined Use of Brackish Water and Nitrogen Fertilizer on Biomass and Sugar Yield of Sweet Sorghum

【24h】

Effect of Combined Use of Brackish Water and Nitrogen Fertilizer on Biomass and Sugar Yield of Sweet Sorghum

机译：苦咸水和氮肥配合使用对甜高粱生物量和糖产量的影响

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

页面导航

摘要
著录项
相关主题

摘要

Soil salinization and non-point source pollution are among the most important and widespread environmental problems in European Mediterranean regions.Sweet sorghum (Sorghum bicolor (L.) Moench var.saccharatum) is a moderate to high salinity tolerant crop with low water and nutrient needs,seen as an alternative to grow in the water scarce regions.A three-year multifactorial study was conducted in southern Portugal to evaluate the combined effects of saline water and nitrogen application on the dry biomass (total,stems,and leaves),sugar content (total reducing sugars and sucrose contents),and sugar yield (here defined as the product of total reducing sugars and stems dry biomass) functions of sweet sorghum.Sorghum dry biomass and sugar yield showed diminishing returns for each incremental change of nitrogen.The use of saline irrigation waters also led to yield reduction.Exception was sucrose content which increased with increasing levels of sodium in the soil.Nitrogen need decreased as the amount of sodium applied increased.Stem dry biomass,sucrose content,and sugar yield progressively increased with progress in the experiment.The effect could be attributed to the increase of the amount of irrigation applied throughout the years,thus increasing the leaching fraction which promoted salt leaching from the root zone,reduced the salinity stress,increased plant transpiration,nitrogen uptake and biomass yield.

机译：土壤盐渍化和面源污染是欧洲地中海地区最重要和最广泛的环境问题之一。甜高粱（Sorghum bicolor（L.）在葡萄牙南部进行了为期三年的多因素研究，评估了盐水和氮肥施用对干燥生物量（总茎，茎和叶），糖含量的综合影响。甜高粱的总糖含量（还原糖和蔗糖总含量）和糖产量（此处定义为总还原糖与茎干生物量的乘积）的功能。高粱的干燥生物量和糖产量显示出氮的每次增加变化都会降低收益。盐分灌溉水也导致产量下降。蔗糖含量例外，其随土壤钠含量的增加而增加。随着试验的进行，茎干生物量，蔗糖含量和糖产量逐渐增加。其效果可能归因于多年来灌溉量的增加，从而增加了浸出率。从根部浸出的盐分减少了盐分胁迫，增加了植物的蒸腾作用，氮素吸收和生物量产量。

著录项

来源
《土壤圈（英文版）》 |2012年第6期|785-794|共10页
作者
T.B.RAMOS; N.L.CASTANHEIRA; M.C.GONCALVES; M.L.FERNANDES; M.I.JANU(A)RIO; M.E.LOURENCO; F.P.PIRES; J.C.MARTINS;
展开▼
作者单位

CEER-Biosystems Engineering, Institute of Agronomy, Technical University of Lisbon, Tapada da Ajuda, 1349-017 Lisbon(Portugal);

Estac(a)o Agronómica Nacional, L-INIA, Instituto Nacional de Recursos Biológicos, Quinta do Marquês, Av. República, 2784-505 Oeiras(Portugal);

Estac(a)o Agronómica Nacional, L-INIA, Instituto Nacional de Recursos Biológicos, Quinta do Marquês, Av. República, 2784-505 Oeiras(Portugal);

Estac(a)o Agronómica Nacional, L-INIA, Instituto Nacional de Recursos Biológicos, Quinta do Marquês, Av. República, 2784-505 Oeiras(Portugal);

CEER-Biosystems Engineering, Institute of Agronomy, Technical University of Lisbon, Tapada da Ajuda, 1349-017 Lisbon(Portugal);

Departamento de Fitotecnia, Instituto de Ciências Agr(A)rias e Ambientais Mediterr(a)nicas, Universidade de (E)vora, Apartado 94,7002-554 (E)vora(Portugal);

Estac(a)o Agronómica Nacional, L-INIA, Instituto Nacional de Recursos Biológicos, Quinta do Marquês, Av. República, 2784-505 Oeiras(Portugal);

Estac(a)o Agronómica Nacional, L-INIA, Instituto Nacional de Recursos Biológicos, Quinta do Marquês, Av. República, 2784-505 Oeiras(Portugal);

展开▼
收录信息中国科学引文数据库(CSCD);中国科技论文与引文数据库(CSTPCD);
原文格式 PDF
正文语种 chi
中图分类
关键词

Effect of Combined Use of Brackish Water and Nitrogen Fertilizer on Biomass and Sugar Yield of Sweet Sorghum

摘要

著录项

相关主题

期刊订阅