Water and nutrient use efficiency of soilless grown greenhouse tomato (Lycopersicon esculentum L.)

IF 1.7 4区 农林科学 Q2 AGRICULTURE, MULTIDISCIPLINARY
Yayra K. Agbemabiese, Abdul-Halim Abubakari, Israel K. Dzomeku, Shaibu Abdul-Ganiyu
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Abstract

Fertigation by drip irrigation enhances the supply of water and nutrients directly to the root zone of plants. This results in maximal crop water and nutrient uptake and reduces leaching of nutrients and chemicals from the root zone. Two tomato varieties were cultivated in soilless medium in two greenhouse conditions to assess fertilizer rate, and irrigation regime on yield, water and nutrient utilization under a factorial experimental layout in a split-split plot design. The treatments were: three levels of fertilizer rate (F1: 100%, F2: 80%, F3: 60%) as recommended for soilless grown greenhouse tomato production, three levels of irrigation regime (I1: 100%, I2: 80%, I3: 60%) with respect to the crop water requirement and two tomato genotypes (V1: Jalila F1, V2: Yetty F1). A 20% to 40% decrease in fertilizer rate and irrigation regime decreased cluster (0.9–6.6%), flower (0.9–13.1%) and fruit (0.3–15%) formation under greenhouse condition. Marketable yield as affected by the combination of fertilizer rate by irrigation regime by genotype increased with increase in crop water productivity and nutrient use efficiency under greenhouse condition. Nutrient use efficiency increased with increase in crop water productivity. Evidently, marketable yield, crop water productivity and nutrient use efficiency vary significantly with plant nutrition, irrigation, genotype and its interactions. These are critical in curbing water scarcity, managing the economic crisis and to further the quest for zero hunger.
温室无土栽培番茄水分和养分利用效率的研究
滴灌施肥可以直接向植物根区提供水分和养分。这样可以使作物最大限度地吸收水分和养分,减少根区养分和化学物质的淋失。以2个番茄品种为研究材料,在2个温室条件下进行无土栽培,在分畦设计的析因试验布局下,评价施肥量和灌溉制度对产量、水分和养分利用的影响。试验采用3个施肥水平(F1: 100%, F2: 80%, F3: 60%), 3个灌溉水平(I1: 100%, I2: 80%, I3: 60%)和2个番茄基因型(V1: Jalila F1, V2: Yetty F1)。在温室条件下,施肥量和灌溉方式降低20% ~ 40%,可降低丛穗(0.9 ~ 6.6%)、花(0.9 ~ 13.1%)和果(0.3 ~ 15%)的形成。在温室条件下,施肥、灌溉、基因型组合对作物可售产量的影响随着作物水分生产力和养分利用效率的提高而增加。养分利用效率随作物水分生产力的提高而提高。可售产量、作物水分生产力和养分利用效率因植物营养、灌溉、基因型及其相互作用而显著差异。这对于遏制水资源短缺、管理经济危机和进一步追求零饥饿至关重要。
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来源期刊
Cogent Food & Agriculture
Cogent Food & Agriculture AGRICULTURE, MULTIDISCIPLINARY-
CiteScore
3.30
自引率
5.00%
发文量
79
审稿时长
11 weeks
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