학술논문
不同深耕时间对河北省滨海盐碱地土壤理化性质以及棉花植株性状和产量的影响 / Effects of Different Plough-deep Times on Physico-chemical Properties of Soil and the Yield and Plant Trait of Cotton in Coastal Saline Area of Hebei
Document Type
Academic Journal
Author
冯国艺; 翟黎芳; 杜海英; 张谦; 梁青龙; 祁虹; 王树林; 王燕; 雷晓鹏; 林永增; FENG Guo-yi; ZHAI Li-fan g; DU Hai-ying; ZHANG Qian; LIANG Qing-long; QI Hong; WANG Shu-lin; WANG Yan; LEI Xiao-peng; LIN Yong-zeng
Source
河北农业科学. 20(1):25-29
Subject
Language
Chinese
Abstract
为了探明深耕时间对河北省滨海盐碱地土壤理化性质以及棉花生长发育和产量的影响，分别在冬前、开春、播前进行深耕，以棉花（冀棉228）免耕直播处理为对照，分析了不同深耕时间对棉花苗期0~40 cm表层土壤理化性质（含盐量、含水量、容重）以及棉花植株性状（株高、果枝数、幼铃数、成铃数）、产量构成因子（单株铃数、铃重、衣分）和产量（子棉产量、皮棉产量）的影响。结果表明：与免耕直播处理相比，深耕处理的土壤容重均明显下降，其中，冬前深耕处理的各土层含盐量和含水量无明显变化，株高、果枝数和成铃数无显著变化，幼铃数明显增多，产量提高不显著；开春深耕处理的各土层含盐量明显降低，10~40 cm土层含水量无明显变化，株高、果枝数、成铃数和单铃重明显增大，幼铃数在生育后期（9月10日）明显减少，产量显著提高；播前深耕处理的各土层含盐量明显增大、含水量显著降低，株高、果枝数、幼铃数、成铃数和单铃重明显减小，产量明显降低。开春深耕能有效改良滨海盐碱土壤，有利于棉花生长发育和产量提高。
For investigating the effects of different plough-deep times on physico-chemical properties of soil during the cotton seedling stage and the yield and plant trait of cotton in coastal saline area of Hebei,three different treatments were performed using saline fields that were the plough-deep before win-ter, the plough-deep at the begin of spring, the plough-deep before planting and no-tillage direct-seeding (CK) with cotton (Jimian 228) in saline-alkali soil. The salt content,moisture content,and soil bulk density of 0-40 cm depth soil was deter-mined hierarchically in the seedling stage,and the yield and plant trait of cotton also determined dur-ing the growth stage. The results showed that compared with CK, the soil bulk density reduced obviously under the other three treatment. The salt content and moisture content of soil,the plant height,the number of fruit branches,large bolls of cotton had not been indifference, the small boll number of cotton increased obviously, the increase of cotton yield was not significant under the T1 treatment. The soil salt content reduced and the moisture content of 10-40 cm soil had not been obvious changed,the plant height,the number of fruit branches,large bolls and boll weight of cotton increased obviously,and the small boll number of cotton reduced obviously at 10 September,the increase of cotton yield was not significant under the T2 treatment. The soil salt content in-creased and the soil moisture content reduced, the number of fruit branches, large bolls and small bolls of cotton increased obviously,the boll weight and yield of cotton of cotton also increased obviously under the T3 treatment. There was more advantageous to soil improvement, the growth and development and yield im-provement of cotton in Coastal Saline Area of Hebei under the plough-deep at the begin of spring.
For investigating the effects of different plough-deep times on physico-chemical properties of soil during the cotton seedling stage and the yield and plant trait of cotton in coastal saline area of Hebei,three different treatments were performed using saline fields that were the plough-deep before win-ter, the plough-deep at the begin of spring, the plough-deep before planting and no-tillage direct-seeding (CK) with cotton (Jimian 228) in saline-alkali soil. The salt content,moisture content,and soil bulk density of 0-40 cm depth soil was deter-mined hierarchically in the seedling stage,and the yield and plant trait of cotton also determined dur-ing the growth stage. The results showed that compared with CK, the soil bulk density reduced obviously under the other three treatment. The salt content and moisture content of soil,the plant height,the number of fruit branches,large bolls of cotton had not been indifference, the small boll number of cotton increased obviously, the increase of cotton yield was not significant under the T1 treatment. The soil salt content reduced and the moisture content of 10-40 cm soil had not been obvious changed,the plant height,the number of fruit branches,large bolls and boll weight of cotton increased obviously,and the small boll number of cotton reduced obviously at 10 September,the increase of cotton yield was not significant under the T2 treatment. The soil salt content in-creased and the soil moisture content reduced, the number of fruit branches, large bolls and small bolls of cotton increased obviously,the boll weight and yield of cotton of cotton also increased obviously under the T3 treatment. There was more advantageous to soil improvement, the growth and development and yield im-provement of cotton in Coastal Saline Area of Hebei under the plough-deep at the begin of spring.