ISWC OpenIR  > 水保所知识产出(1956---)
加气滴灌提高大棚甜瓜品质及灌溉水分利用效率
李元1; 牛文全1,2; 许健1; 张若婵2; 王京伟1
2016
Source Publication农业工程学报
Volume32Issue:1Pages:147-154
Abstract

为揭示加气频率和滴灌带埋深等对甜瓜产量、品质及水分利用效率的影响,以甜瓜(陕甜一号)为研究对象,采用追
加正交试验设计,研究不同加气频率、地下滴灌带埋深及灌水控制上限对大棚甜瓜果实形态、产量、品质及灌溉水分利用效
率的影响。结果表明:对果实形态、品质及产量影响的大小顺序依次为加气频率、滴灌带埋深和灌水控制上限。对水分利用
效率的影响大小顺序依次为灌水控制上限、加气频率和滴灌带埋深。根区加气能够显著改善果实产量及品质,滴灌带埋深
为25 cm,每天加气1 次品质及果实形态指标最好,产量最高。灌水量控制在田间持水量的80%时,果实可溶性固形物含量
最高,但灌水量为70%田间持水量时,可溶性总糖、产量、水分利用效率最高。综合考虑,最优处理组合为滴灌带埋深25 cm,每
天通气一次,灌水控制上限为70%田间持水量。

Other Abstract

It is plagued by poor quality and low yields that muskmelon production in the semi-arid climate in China. In
addition to soil water, it is well-known that muskmelon plant roots require an adequate and continuous supply of soil air in
order to respire, grow, develop, and function normally. Rhizosphere hypoxia effects influence crop yield, shoot and root
growth, and quality of production negatively. Hypoxia causes stomatal closure and reduction in transpiration rate,
photosynthesis and leaf chlorophyll as well as protein content. Artificial aeration has been shown to promote root
metabolism and growth, also it enhanced nutrient absorption and soil redoxase enzyme activity as well as accelerated the
growth and yield of vegetables. In this context, under sub-surface drip irrigation, in the wetted portion of the root zone, the
possibility of hypoxia is almost certain, especially in heavy soils with slow internal drainage and during the period
immediately after irrigation. It was hypothesized that varying the irrigation rate, aeration frequencies and amount along with
the depth of the drip irrigation tubing would result in different yield and quality of muskmelon. To explore the influence of
root zone aeration frequency, lateral depths of subsurface drip irrigation belt and irrigation amount on fruit yield, quality
and irrigation water were used efficiency of muskmelon. The experiment was implemented from April to July 2014 in a 108
m long and 8 m wide greenhouse (E108°02′, N34°17′), located, at Yangling, Shaanxi Province, China. A fractional factorial
experiment was designed to study the root system responding to 3 levels of sub-surface drip irrigation in combination with
drip-tubing placed at each of 3 depths in the soil, and 4 levels of artificial soil aeration. Based on wetting the soil volume
(Vs) in 0.60 cm of the soil profile (Vs = 5.5 m2×0.6 m), the irrigation levels were designated as 70%, 80%, and 90% of the
gravimetric field capacity, and the drip irrigation placement depths were 10, 25, and 40 cm below the surface of the ridge.
Artificial aeration treatments were none or aeration at daily, 2-day, and 4-day intervals. The volume of air in each plot was
injected into the drip tubing via a manifold connected to the air compressor. These studies suggest that according to the
influence degree on fruit shape (fruit length, diameter and flesh thickness), yield and quality (total soluble solids, soluble
protein, titratable acid, soluble sugar and vitamin C content), these factors can be arranged as follow (descending): aeration
frequencies, depths of subsurface drip irrigation, irrigation amount; for the use of irrigation water use efficiency of
muskmelon. Aeration was suggested to be applied once a day and lateral depths of subsurface drip irrigation was 25 cm,
which have positive impact on muskmelon yield, quality (total soluble solids, soluble protein, titratable acid, soluble sugar
and vitamin C content), fruit shape (fruit length, diameter and flesh thickness) and irrigation water use efficiency. The
content of total soluble solid can reach the maximum when water soil content attended to 80% of the field capacity; the
content of total soluble sugar, yield and irrigation water use efficiency can reach the maximum when irrigation amount
attended to 70% of the field capacity. Therefore, based on production, quality and water use efficiency, aerating once a day,
lateral depth was 25 cm and 70% field capacity would be the most appropriate treatment combination for starting irrigation
grows of muskmelon in the plastic greenhouse. For the observed responses, the information on how the muskmelon adapt to
artificial soil aeration would provide guidance for field production practices as well as indications of possible mechanisms.

Keyword灌溉 土壤 品质控制 甜瓜 根区加气 地下滴灌 产量 灌溉水分利用效率
Indexed By中文核心期刊要目总览
Language中文
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8631
Collection水保所知识产出(1956---)
Affiliation1.西北农林科技大学水土保持研究所
2.西北农林科技大学水利与建筑工程学院
Recommended Citation
GB/T 7714
李元,牛文全,许健,等. 加气滴灌提高大棚甜瓜品质及灌溉水分利用效率[J]. 农业工程学报,2016,32(1):147-154.
APA 李元,牛文全,许健,张若婵,&王京伟.(2016).加气滴灌提高大棚甜瓜品质及灌溉水分利用效率.农业工程学报,32(1),147-154.
MLA 李元,et al."加气滴灌提高大棚甜瓜品质及灌溉水分利用效率".农业工程学报 32.1(2016):147-154.
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