Reducing Nutrient and Irrigation Rates in Solar Greenhouse without Compromising Tomato Yield

Wang, Qianqian; Bai, Xinlu; Chen, Zhujun

doi:10.21273/hortsci13523-18

Cited by 2 publications

(2 citation statements)

References 19 publications

(33 reference statements)

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“…Synthetic N fertilizer is a relatively low-cost input, resulting in potential excessive application [6]. The overapplication of nutrients and water is common in intensive greenhouse systems [7]. The unused N fertilizer may remain in the soil or be subject to denitrification, volatilization and leaching to groundwater [8].…”

Section: Introductionmentioning

confidence: 99%

“…The type of N applied, and Agronomy 2021, 11, 444 2 of 13 the timing of fertilizer applications are important to reduce losses due to volatilization and leaching [9]. A study conducted by Wang et al [7] revealed that this strategy has great potential to reduce nutrient and water use while maintaining the same yield in greenhouse production.…”

Section: Introductionmentioning

confidence: 99%

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Fertigation Strategies to Alleviate Fertilizer Contamination Generated by Tomato Crops under Plastic Greenhouses

2021

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The rapid development of greenhouse horticulture has brought about a dramatic increase in the nitrate pollution of aquifers. The optimization of nitrogen application is an important tool to minimize nitrogen losses. The objective of this research was to assess the effect of different fertigation strategies, based on the reduction of the nitrogen applied and the use of a percentage of NH4+ as a nitrogen source, on the decrease in the environmental impact caused by the traditional system, as well as to evaluate if this is compatible with a high fruit yield (considering quantity and quality). Lycopersicum esculentum Mill cv. Forteza plants were grown in a polyethylene greenhouse. Tomato yield and quality were evaluated, along with leachates, which were collected by means of rigid plastic lysimeters. The proposed strategies did not reduce fruit yield. However, the reduction in the nitrate applied caused firmness and °Brix decrease, together with a diminution in titratable acidity until 124 days after transplanting. Nevertheless, these effects were not observed with the replacement of some of the NO3− by NH4+. The reduction in fertilizer inputs significantly improved water and nutrient (N, P and K) use efficiency. The treatment with NH4+ improved K use efficiency, compared to the conventional treatment, but P decreased. The highest NO3− and K leaching was detected in the traditional treatment.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fertigation Strategies to Alleviate Fertilizer Contamination Generated by Tomato Crops under Plastic Greenhouses

2021

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Application of complex micro fertilizers in protected soil

Аuzhanovа,

Tynykulov,

Kozhagalieva

et al. 2023

ПиА

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In arid and sharply continental soil and climatic conditions of the Akmola region, green-house farming is an important technique. Greenhouse farming is one of the promising areas of agriculture, since vegetable and melon crops are grown in conditions of temperature, humidity, illumination, and nutrient medium regulated at an optimal level, which results in a high yield of fruits, vegetables and melons. In the winter industrial greenhouse of Kokshetau University, the effect of mineral fertilizers and trace elements on the growth, development and yield of cucumber was studied. As a result of two crop rotations, positive data were obtained indicating an increase in plant growth in height at the early stages of vegetation by an average of 2.20 cm with presowing soaking of seeds and non-root fertilization of plants with 0.1-0.5 % aqueous solution with preparations of biological origin Phomazin+Filvimax, an increase in leaf area by 13.5 cm2, an acceleration of the flowering phase by 1.3-1.5 days, an increase in the yield of standard fruits by 22 pcs., an increase in yield by 5.9 kg / m2. The improvement of these indicators is justified by the presence in the preparations of biological origin Phomazin+Filvimax of a significant amount of macro- and microelements that play an important role in plant nutrition and the formation of cucumber fruits. It is recommended to grow vegetables according to the developed technology in a greenhouse in the conditions of the Akmola region for uninterrupted supply of fresh vegetables to the population.

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Reducing Nutrient and Irrigation Rates in Solar Greenhouse without Compromising Tomato Yield

Cited by 2 publications

References 19 publications

Fertigation Strategies to Alleviate Fertilizer Contamination Generated by Tomato Crops under Plastic Greenhouses

Fertigation Strategies to Alleviate Fertilizer Contamination Generated by Tomato Crops under Plastic Greenhouses

Application of complex micro fertilizers in protected soil

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