|Author:||Zhai, Sheng ; Liang, YinLi ; Zhang, XiuSheng ; Wang,JuYuan ; Dai, QuanHou ; Liu, Hui|
|Book Group Author:||NA|
The effects of various soil mulching models on cucumber quality, water use efficiency and soil environment in a greenhouse were determined. Results showed that, under the soil surface mulching model, cucumber yield and the contents of dry matter, soluble sugar, total vitamin C, soluble protein and total dissociative amino acid were increased, and water use efficiency was also enhanced. The effects of wheat straw with plastic film (WP) treatment were better than those of wheat straw (WS) and plastic film (PF) alone. Under the same treatment, fruit quality and water use efficiency of grafted cucumber were significantly higher than those of the own-rooted ones. WS treatment enhanced the lowest soil temperature and decreased the highest soil temperature, which made the range of soil temperature stable. PF treatment increased the highest soil temperature and decreased the lowest soil temperature, which resulted in a larger soil temperature range. WP treatment did not only increase the lowest soil temperature, but also decreased the highest soil temperature. The diurnal fluctuation in soil respiration rate was a single-peak curve with the highest value appearing at ~14.30 h, which was very similar to the soil temperature trend at the 5-10 cm soil depth. Moreover, a significantly positive correlation existed between soil temperature and soil respiration rate. The values of soil respiration rate of the mulching treatments were significantly larger than those of the control, and decreased in the order of WP, PF and WS. At the 0-20 cm soil depth, minimum and maximum bulk density were measured in WP and CK at the end of the experiment, respectively. Bulk density values of WP and WS were significantly less than that of CK, but the bulk density value of PF was appreciably less than that of CK. Bulk density values of all treatments became more and more similar with the increase in soil layer depth. The contents of soil organic matter, total N and P, and available N, P and K at the 0-20 cm soil depth under WS and WP treatment were significantly larger than those of CK and PF, and those of PF were smaller than those of CK.
|Pages:||65 - 71|
|Journal:||Transactions of the Chinese Society of Agricultural Engineering|
amino acids, ascorbic acid, biological activity in soil,bulk density, crop quality, crop yield, cucumbers, diurnal variation,dry matter, mulches, mulching, nitrogen, nutrient availability,phosphorus, plant water relations, plastic film, potassium, proteincontent, soil chemical properties, soil density, soil depth, soilfertility, soil organic matter, soil physical properties, soiltemperature, straw, sugar content, water use efficiency, wheat, wheatstraw, Cucumis sativus, Cucumis, Cucurbitaceae, Violales, dicotyledons,angiosperms, Spermatophyta, plants, eukaryotes, chemical properties ofsoil, gherkins, mulching materials, organic matter in soil, physicalproperties of soil, soil respiration, vitamin C, Horticultural Crops(FF003) (New March 2000), Plant Water Relations (FF062), PlantProduction (FF100), Soil Biology (JJ100), Soil Chemistry and Mineralogy(JJ200), Soil Physics (JJ300), Soil Fertility (JJ600), Soil Management(JJ900), Crop Produce (QQ050), Food Composition and Qu