Effects of Drip Irrigation Frequency on Soil Physical and Chemical Characteristics and Cotton Yield Under Subsoiling Condition

CUI Jianping; CHENG Qiang; CHEN Ping; GUO Rensong; WANG Liang; ZHENG Zipiao; LIN Tao; TIAN Liwen; XU Haijiang

doi:10.13870/j.cnki.stbcxb.2019.01.041

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Effects of Drip Irrigation Frequency on Soil Physical and Chemical Characteristics and Cotton Yield Under Subsoiling Condition

更新时间：2025-03-12

- Effects of Drip Irrigation Frequency on Soil Physical and Chemical Characteristics and Cotton Yield Under Subsoiling Condition
- Vol. 33, Issue 1, Pages: 263-269(2019)
- 作者机构：
  
  1. 新疆农业科学院经济作物研究所,乌鲁木齐,830091
  2. 阿瓦提县气象局, 新疆阿瓦提,843200
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2019.01.041
  CLC： S274.1
- Published：2019
- 稿件说明：
移动端阅览
CUI Jianping, CHENG Qiang, CHEN Ping, et al. Effects of Drip Irrigation Frequency on Soil Physical and Chemical Characteristics and Cotton Yield Under Subsoiling Condition[J]. 2019, 33(1): 263-269.
DOI：

CUI Jianping, CHENG Qiang, CHEN Ping, et al. Effects of Drip Irrigation Frequency on Soil Physical and Chemical Characteristics and Cotton Yield Under Subsoiling Condition[J]. 2019, 33(1): 263-269. DOI： 10.13870/j.cnki.stbcxb.2019.01.041.

摘要

研究深松条件下灌溉频次对土壤理化指标及棉花产量的调节效应，对优化新疆棉田滴灌制度提供理论依据。2016-2017年，在深松40 cm条件下，设置4，7，10 d/次3个滴灌频次，灌溉总量均为3 600 m3/hm2的田间试验，测定并分析了不同滴灌频次对棉田0-60 cm土层内土壤容重、紧实度、含水量、盐分含量及产量构成的调节效应。结果表明：棉花生育期内，不同处理0-40 cm土层内的土壤容重表现为10 d/次 > 4 d/次 > 7 d/次处理的变化趋势，40-60 cm土层则以4 d/次处理略高，7 d/次处理在0-60 cm土层深度土壤容重和紧实度均处在较低水平；不同土层深度下，各生育时期7 d/次处理土壤含水量可维持在较高水平，2年平均分别较4，10 d/次处理高出14.1%和18.0%；0-60 cm土层内，处理间各生育期土壤含盐量变化情况表现为4 d/次 > 7 d/次 > 10 d/次处理，随着灌水频次减少土壤盐分浓度峰值逐渐下移，不同处理在20-40 cm深度形成明显的积盐区；不同滴灌频次下，棉花单株结铃数、单铃重和籽棉产量均以7 d/次处理最高，4 d/次处理最低，与4，10 d/次处理相比，2年平均籽棉产量分别高出12.1%和10.0%。因此，适中的灌水频次（7 d/次）有利于维持作物生长的土壤耕作环境及适宜的水分盐分环境，可促成棉花产量的形成。

Abstract

The effects of drip irrigation frequency on soil physical and chemical indicators and cotton yield under subsoiling were studied

which provided a theoretical basis for optimizing the drip irrigation system in cotton fields of Xinjiang. In this study

three different drip irrigation frequencies (4 days/times

7 days/times and 10 days/times

respectively) and 3 600 m3/hm2 as the total irrigation amount were selected. The experiment was carried out under the mechanical subsoiling of 40 cm from May to September of 2016 and 2017 in the Tarim Basin. The soil bulk density

compaction

water content

salt content and yield components in 0-60 cm soil layer of cotton field were determined and analyzed. The results showed that during the growth period of cotton

the soil bulk density in 0-40 cm soil layer showed a trend of 10 days/times > 4 days/times > 7 days/times

and in 40-60 cm soil layer the value of the 4 days/times treatment was slightly higher. The soil bulk density and compaction of 0-60 cm soil layer were maintained at a low level in 7 days/times treatment. Under different soil depths

the soil water content of 7 days/times treatment maintained at a higher level during every growth period. The average value in two years was 14.1% and 18.0% higher that of 4 days/times and 10 days/times treatment

respectively. In the 0-60 cm soil layer

the soil salinity during the growth period was 4 days/times > 7 days/times > 10 days/times treatment. With the decreasing of drip irrigation frequency

the peak of soil salinity decreased gradually

and an obvious salt accumulation area was formed at the depth of 20-40 cm. Under different drip irrigation frequencies

the number of bolls per plant

single boll weight and seed cotton yield were the highest in 7 days/times treatment

and the lowest in 4 days/times treatment. Compared with 4 days/times and 10 days/times treatment

the average seed cotton yield in two years in 7 days/times treatment was increased by 12.1% and 10.0%

respectively. Therefore

moderate drip irrigation frequency (7 days/times) was conducive to maintaining the favorable soil cultivation environment and suitable water and salt environment for crop growth

which could promote the formation of cotton yield.

关键词

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