Morphological Growth of Soybean (Glycine max L.) Treated with Soil Application of Humic Acid under Different Cultivation Periods

Agricultural Science Pub Date : 2023-03-28 DOI:10.55173/agriscience.v6i2.96

Chnar Hama Noori Meerza, Shara Salih Ali

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引用次数: 1

Abstract

The demand of organic cultivation of plants is increasing and soil application of organic fertilizer reduces the hazardous usage of inorganic fertilizer and Humic acid is an organic compound derived from plant and animal residues and microbial cells with long-term physical, chemical, and biological processes. In addition, ultivation of soybean in Kurdistan region is not in a wide value therefore, the objective of this study was to determine the impact of soil application of different rates of Humic acid as an organic fertilizer on the growth characteristic of soybean cultivated and determining the best cultivation period for soybean growth. The experiment was conducted in randomized complete block design with two factor treatments and 3 replication, the first factor was one dose soil application of four different Humic Acid rates (HAR) which were (0 (control), 2,4,6,8 g/L) and two cultivation period (CP) which were cultivation Period 1 (CP1) on 15 May 2022 and cultivation Period 2 (CP2) on 1st of June 2022. Observations were made against the growth parameters of plant height number of branches, leaf area, root length, shoot fresh weight and shoot dry weight. The effect of soil application of humic acid rates (HAR) was highly significant on the plant height and root length and significant on the No. of branches, shoot fresh and dry weight. While, cultivation period insignificantly affected the growth parameter except for leaf area. was significant. The maximum plant height, number of branches, leaf area, root length, shoot fresh and dry weight were observed with soil application of 8 g/L of humic acid which were (82.83 (cm), 23.33, 8815 (mm2), 68.83 (cm), 503.33 (g) and 190.00 (g) respectively. The highest plant height (72 cm), number of branches (18.87), leaf area (7714 mm2), root length (57.13 g), shoot fresh (263.67 g) and dry weight (102.93 g) were observed when the planted cultivated in 1st period (CP1) compared to CP2.

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大豆(Glycine max L.)的形态生长不同栽培期土壤施用腐植酸处理

植物有机栽培的需求日益增加，土壤中施用有机肥减少了无机肥料的有害使用，腐植酸是一种从动植物残留物和微生物细胞中经过长期物理、化学和生物过程提取的有机化合物。此外，库尔德斯坦地区种植大豆的价值并不广泛，因此本研究的目的是确定土壤中施用不同量腐植酸作为有机肥对栽培大豆生长特性的影响，并确定大豆生长的最佳栽培期。试验采用2因素处理、3个重复的随机完全区组设计，第1因素为1剂量土壤施用4种不同腐植酸含量(HAR)(0(对照)、2、4、6、8 g/L)和2个栽培期(CP)，即2022年5月15日的栽培第1期(CP1)和2022年6月1日的栽培第2期(CP2)。观察了枝条株高、枝数、叶面积、根长、地上部鲜重和地上部干重等生长参数。土壤施用腐植酸量(HAR)对株高和根长的影响极显著;对树枝，嫩枝干重。除叶面积外，栽培期对其他生长参数的影响不显著。是重要的。施用8 g/L腐植酸时，最大株高、枝数、叶面积、根长、地上部鲜重和干重分别为82.83 (cm)、23.33、8815 (mm2)、68.83 (cm)、503.33 (g)和190.00 (g)。第一期栽培(CP1)的株高(72 cm)、枝数(18.87)、叶面积(7714 mm2)、根长(57.13 g)、梢鲜(263.67 g)和干重(102.93 g)均高于第一期栽培(CP2)。

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Agricultural Science

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