干旱区生态环境知识资源中心(Arid): 肥料酸化对灌漠土pH的影响

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	肥料酸化对灌漠土pH的影响
其他题名	Effects of fertilizer acidification on the soil pH of irrigated desert soil
	陈震; 车宗贤; 张久东; 崔云玲; 张立勤
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2020
卷号	37 期号:6 页码:1478-1487
中文摘要	明确水肥一体化条件下不同酸度水肥溶液对灌漠土pH的改良效果,为碱性土壤合理施肥提供参考。本试验设置5个灌溉溶液pH:A1(1.5)、A2(3.5 )、A3(5.5)、A4(7.5)(对照)和A5(9.5),两个灌水量W1(1500 m~3·hm~(-2))和W2 (3000 m~3·hm~(-2)),两个施氮量N1(450 kg·hm~(-2))和N2(900 kg·hm~(-2)),共20个处理,通过盆栽试验进行研究。结果表明: (1)土壤pH与灌溉溶液pH显著正相关,A1处理下0~5 cm土层土壤pH可降至7.16~7.4,相比A2、A3、A4、A5四个处理降低了0.45~0.81,与各处理间差异显著。(2)增加灌水量或施氮量对土壤pH无显著影响。(3)土壤pH在灌溉溶液的当天最低,然后慢慢恢复,且随着灌溉次数的增加,土壤pH越来越低。(4)各处理下土壤pH随土层深度的增加而增加,其中A1处理下0~5 cm、5~10 cm、10~20 cm、20~30 cm、30~40 cm土层土壤pH分别为7.27、7.67、7.84、7.98、 8.08,土层间差异最大。酸性溶液能显著降低灌漠土pH,不论是灌溉溶液pH,还是灌水量,或是施氮量,主要是改变了耕层土壤的pH,对底层土壤pH影响不大。所以,在农业生产中,可通过调节溶液酸度,降低碱性土壤pH,为作物的健康生长提供保障。
英文摘要	The effect of different acidity of water and fertilizer solutions on the pH of irrigated desert soil were studied. Five irrigation set-ups were made with different pH: A1 (1.5), A2 (3.5), A3 (5.5), A4 (7.5), (CK), and A5 (9.5); two irrigation quantity: W1 (1500 m~3·hm~(-2)) and W2 (3000 m~3·hm~(-2)); and two applied amount of N fertilizer: N1 (450 kg·hm~(-2)) and N2 (900 kg·hm~(-2)), leading to a total of 20 treatments. Related studies through pot experiment were done. This study showed that (1) the soil pH was significantly positively correlated with the irrigation solution pH. The soil pH of 0-5 cm soil layer under A1 treatment can be reduced to 7.16-7.4, which was 0.45-0.81 units lower than A1, A2, A3, and A4. (2) Increasing the amount of irrigation or nitrogen have no significant effect on soil pH. (3) The soil pH was the lowest on the day of the application of irrigation solution, and then slowly recovered. As the number of irrigations increased, the soil pH became lower and lower. (4) Under each treatment, the soil pH increased with the increase in soil layer depth. Among them, the soil pH of 0-5 cm, 5-10 cm, 10-20 cm, 20-30 cm, and 30-40 cm soil layers under A1 treatment were 7.27, 7.67, 7.84, 7.98, and 8.08, respectively. The difference of soil pH between the soil layers is the largest. The acidic solution can significantly reduce the pH of the irrigated desert soil. Regardless of the pH of the solution and the amount of irrigation or nitrogen applied, the pH of the cultivated soil layer was mainly changed, and the pH of the bottom soil was not greatly affected. Thus, we can adjust the acidity of the solution to make the pH of the alkaline soil lower in agricultural production. This will provide a scientific basis for the efficient management of nutrient resources of alkaline soil. It will guarantee the healthy growth of crops.
中文关键词	酸性肥料 ; 土壤pH ; 灌漠土 ; 黑麦草 ; 水肥一体化
英文关键词	acidic fertilizer soil pH irrigated desert soil Lolium perenne integration of water and fertilizer
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:6884621
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/353537
作者单位	陈震, 甘肃省农业科学院土壤肥料与节水农业研究所;;甘肃农业大学资源与环境学院, ;;, 兰州;;兰州, 甘肃;;甘肃 730070;;730070, 中国. 车宗贤, 甘肃省农业科学院土壤肥料与节水农业研究所;;甘肃农业大学资源与环境学院, ;;, 兰州;;兰州, 甘肃;;甘肃 730070;;730070, 中国. 张久东, 甘肃省农业科学院土壤肥料与节水农业研究所, 兰州, 甘肃 730070, 中国. 崔云玲, 甘肃省农业科学院土壤肥料与节水农业研究所, 兰州, 甘肃 730070, 中国. 张立勤, 甘肃省农业科学院土壤肥料与节水农业研究所, 兰州, 甘肃 730070, 中国.
推荐引用方式 GB/T 7714	陈震,车宗贤,张久东,等. 肥料酸化对灌漠土pH的影响[J],2020,37(6):1478-1487.
APA	陈震,车宗贤,张久东,崔云玲,&张立勤.(2020).肥料酸化对灌漠土pH的影响.干旱区研究,37(6),1478-1487.
MLA	陈震,et al."肥料酸化对灌漠土pH的影响".干旱区研究 37.6(2020):1478-1487.