| The effect of brackish water irrigation on cotton under different planting methods |
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| DOI：10.7606/j.issn.1000-7601.2012.01.14 |
| Key Words: brackish water cotton planting method film mulching |
| Author Name | Affiliation | | ZHANG Junpeng | Institute of Farmland Irrigation, Chinese Academy of Agricultural Sciences/Key Lab for Crop Water Requirement and Regulation of Ministry of Agriculture, Xinxiang, Henan 453003, China | | ZHENG Chunlian | Institute of Dryland Farming, Hebei Academy of Agriculture and Forestry Sciences, Hengshui, Hebei 053000, China | | SUN Jingsheng | Institute of Farmland Irrigation, Chinese Academy of Agricultural Sciences/Key Lab for Crop Water Requirement and Regulation of Ministry of Agriculture, Xinxiang, Henan 453003, China | | FENG Di | Institute of Farmland Irrigation, Chinese Academy of Agricultural Sciences/Key Lab for Crop Water Requirement and Regulation of Ministry of Agriculture, Xinxiang, Henan 453003, China | | CAO Caiyun | Institute of Dryland Farming, Hebei Academy of Agriculture and Forestry Sciences, Hengshui, Hebei 053000, China |
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| Abstract: |
| Effects of irrigation before sowing with 5 g/L brackish water on growth and yield of cotton whose planting methods were respectively seedling raising and soil-substrate transplanting with film mulching (JZPM),
seedling raising and soil-substrate transplanting without film mulching (JZ), seedling raising in sand and root-naked transplanting with film mulching (SPPM), seedling raising in sand and root-naked transplanting without film mulching (SP), bunch planting with film mulching (DBPM), and bunch planting without film mulching (DB) were studied by plot comparative trial. The survival rate, morphological growth indexes, distribution status of reproductive organs, yield, and rate of yield before frost of cotton with film mulching were higher than those without
film mulching under the same planting method. Based on different planting methods, the survival rate was significantly increased and the growth process was accelerated in the JZPM treatment, while with serious lodging and premature senescen
ce in the later period. The most stable growth was presented in the DBPM treatment. The seed cotton yield was the highest in the DBPM under the condition of filling all the gaps with seedlings. Compared with JZPM, SPPM, DB, SP, and JZ treat
ments, seed cotton yield in the DBPM was increased by 10.08%, 31.03%, 28.88%, 32.78%, and 39.16% respectively. The results of variance analysis showed that the difference of seed cotton yield was not significant between the JZPM and DBPM treatments, but the yield in JZPM and DBPM was significantly higher than the other treatments. The study showed that the planting methods in JZPM and DBPM had vast application prospects in the area under brackish water irrigation. |
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