Abstract:

The purpose of this study was to explore the effects of different soil mulching modes on soil physicochemical properties and vine growth in vineyards, and to provide theoretical basis for selecting the best soil mulching mode in vineyards. The effects of different soil mulching modes on soil physicochemical properties and tree growth were measured at the fruit maturity stage by using ‘Sunshine Muscat’ as the test material, and planting ryegrass, alfalfa and clover in row under the rain protection cultivation mode. The results showed that compared with the control (horticultural field cloth), natural grass significantly increased the contents of soil total nitrogen, total phosphorus, alkali-hydrolyzed nitrogen, available phosphorus, available potassium, soluble solid content of fruit and chlorophyll content of leaves; ryegrass significantly increased soil capillary porosity, improved soil aggregate structure, and increased leaf total nitrogen and carbon content; alfalfa significantly increased soil non-capillary porosity, organic matter content and decreased fruit titrable acid content; clover significantly increased the maximum water holding capacity, minimum water holding capacity, total porosity, capillary water holding capacity and reduced soil bulk density. In summary, natural grass and alfalfa have better effects on improving soil physical properties, nutrient content and fruit quality in vineyards, but alfalfa is better than natural grass in terms of labor cost.

Key words: vineyard, soil cover between rows, soil physical property, soil nutrient, fruit quality, leaf growth, petiole growth