| Effect of two kinds of drip irrigation pipe distribution under plastic film on yield and quality of machine picking cotton in southern Xinjiang |
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| DOI：10.7606/j.issn.1000-7601.2019.02.08 |
| Key Words: drip irrigation under plastic film mulching PNR BPA machine picking cotton cotton yield cotton fiber quality |
| Author Name | Affiliation | | CAI Li-Hua | Institute of Agricultural Sciences of 1st Division of the Xinjiang Production and Construction Corps, Alar, Xinjiang 843300, China | | LIAN Wen-Ming | Institute of Agricultural Sciences of 1st Division of the Xinjiang Production and Construction Corps, Alar, Xinjiang 843300, China | | TAI Hong-Zhong | Institute of Agricultural Sciences of 1st Division of the Xinjiang Production and Construction Corps, Alar, Xinjiang 843300, China | | DAI Cui-Rong | Institute of Agricultural Sciences of 1st Division of the Xinjiang Production and Construction Corps, Alar, Xinjiang 843300, China | | WU Bo | Institute of Agricultural Sciences of 1st Division of the Xinjiang Production and Construction Corps, Alar, Xinjiang 843300, China | | LU Jin-Bao | Institute of Agricultural Sciences of 1st Division of the Xinjiang Production and Construction Corps, Alar, Xinjiang 843300, China | | WANG Xian-Li | Institute of Agricultural Sciences of 1st Division of the Xinjiang Production and Construction Corps, Alar, Xinjiang 843300, China | | HE Mei-Qiu | Institute of Agricultural Sciences of 1st Division of the Xinjiang Production and Construction Corps, Alar, Xinjiang 843300, China | | ZHOU Long | Institute of Agricultural Sciences of 1st Division of the Xinjiang Production and Construction Corps, Alar, Xinjiang 843300, China | | ZHAO Jing | Institute of Agricultural Sciences of 1st Division of the Xinjiang Production and Construction Corps, Alar, Xinjiang 843300, China |
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| Abstract: |
| To further improve water use efficiency of machine-picking cotton in southern Xinjiang, the most suitable drip irrigation pipe arrangement with one film and three tubes under plastic film mulching was explored. The test was conducted in Institute of Agricultural Sciences of 1st Division of the Xinjiang Production and Construction Corps, Alar, Xinjiang in 2017. There were two treatments: one was pipe between narrow rows (PNR, drip irrigation pipe was placed in the middle of two cotton rows), and the other was bias pipe arranged (BPA, drip irrigation belt was placed 10 cm outside cotton narrow rows). The growth potential, dry biomass, leaf area, incidence of Verticillium wilt, yield, cotton quality and soil water, transport of fertilizer and salt in 0~40 cm soil layer were determined by fixed-point and fixed-time field investigation and sampling test. The results showed that the number of cotton flower buds and balls were significantly higher in the PNR than that in BPA at flowering-bolling stage and full bolling stage, and they were higher 13.9% and 5.9%，respectively. At flowering and bolling stages of cotton, the leaf area and dry biomass of leaves, stems, flowers and buds were also apparently greater in PNR than those in BPA, which were 29.2%, 21.2%, 10.3%, 14.9%, respectively. At the same time, the incidence of Verticillium wilt was 23% lower in PNR than that in BPA. The soil moisture, nitrogen, phosphorus and potassium nutrients were consumed significantly higher in PNR than that in BPA. The soil desalination were more effective in PNR than that in BPA. The cotton yield was 14.8% higher in PNR than that in BPA. It is concluded that the system with pipes between cotton rows significantly improved utilization of soil moisture and nutrient, reduced soil salt content, promoted vegetative and reproductive growth of cotton and increased cotton yield. |
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