|Table of Contents|

Study on Irrigation Experiment of Watermelon Drip Irrigation Under Film Based on E601-B Evaporator in Plastic Shed(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2015年04
Page:
34-40
Research Field:
Publishing date:

Info

Title:
Study on Irrigation Experiment of Watermelon Drip Irrigation Under Film Based on E601-B Evaporator in Plastic Shed
Author(s):
REN Zi-li1; 2; ZHANG Xian2
（1.Department of Financial and Economic Management，Leshan Vocational and Technical College，Leshan，Sichuan 614000；2.College of Horticulture，Northwest Agriculture and Forestry University of Science and Technology，Yangling，Shaanxi 712100）
Keywords:
plastic shed; water-saving and high-efficiency agriculture
PACS:
-
DOI:
10.11937/bfyy.201504008
Abstract:
Taking watermelon cultivars named ‘Nongkeda No.5’ as test materials，with irrigation water amount controlled by E601-B type evaporator/pan，the effects of different water supply conditions(Kcp：0.5Ep，1.0Ep，1.5Ep) in different growth stages on watermelon’s yield，fruit quality，water use efficiency was studied，the relationship between irrigation water amount(Ir)，evapotranspiration(ET) and yield，fruit quality，and water requirement regulation were analyzed.There sults showed that a very significant positive correlation between daily mean temperature(T) and daily mean pan evaporation(EP) were showed，and the correlation coefficients was 0.73(P<0.05)，which could be used to guide controlling environment in plastic shed based on E601-B type evaporator/pan.Treatment 5 (T5) was the best for watermelon production in plastic shed that irrigation Kcp in watermelon plant seedling stage，flowering and fruit bearing period，fruit development stage and fruit mature stage respectively were 1，1，1.5，1Ep，which could be used to provide information for precision management and scientific irrigation in plastic shed watermelon production.A very significant positive correlation between irrigation water amount，evapotranspiration and fruit yield，plant fresh weight (FW)were showed，and the correlation coefficients that respectively were 0.79，0.64，0.80，0.50(P<0.05).Correlation between plant dry weight and irrigation water amount，evapotranspiration were not be found.A very significant negative correlation between vitamin C content and plant evapotranspiration was showed，and the correlation coefficients was 0.57(P<0.05).And correlation coefficient of total soluble protein content (TSP)and water irrigation amount in fruit development and mature stage was 0.60（P<0.05）.A negative correlation between total soluble solid content and water irrigation amount in fruit development and mature stage was showed，and the correlation coefficient was 0.31.

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Last Update: 2015-03-26