A. Adekiya, T. Agbede, C. Aboyeji, O. Dunsin, V. Simeon
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引用次数: 35
摘要
摘要通过2年的田间试验,研究了生物炭(B)和禽粪(PM)对萝卜土壤性状、叶片养分浓度和根系产量的影响。实验由3 × 3因子组合B(0、25和50 t ha - 1)和PM(0、2.5和5.0 t ha - 1)组成。B和PM单独或联合施用对萝卜的土壤理化性质、叶片养分浓度和产量成分均有改善作用。在第二年(2016年),B单施增加了土壤pH和有机质、N、P、K、Ca、Mg浓度,提高了叶片养分浓度和产量,而在第一年(2015年),B单施只增加了土壤pH和有机质。在这两个年份,施用B对萝卜根长均有显著影响。生物炭与禽粪具有显著的互作效应,这是由于B能够提高粪便中养分的利用效率。施用50 t ha - 1 B和5 t ha - 1 PM的萝卜产量最高,与单独施用50 t ha - 1、25 t ha - 1和不施用B和PM相比,根重分别增加了193%、252%和252%。因此,对于像萝卜这样的短季作物,仅使用B而不使用PM的预期效益可能无法在第一年实现。
Biochar and poultry manure effects on soil properties and radish (Raphanus sativus L.) yield
ABSTRACT A field experiment was conducted over two years to evaluate the effects of biochar (B) and poultry manure (PM) on soil properties, leaf nutrient concentrations and root yield of radish. The experiment consisted of 3 × 3 factorial combinations of B (0, 25 and 50 t ha−1) and PM (0, 2.5 and 5.0 t ha−1). Applications of B and PM on their own, and in combination, improved soil physical and chemical properties, leaf nutrient concentrations and yield components of radish. In the second year (2016), application of B on its own increased soil pH and concentrations of organic matter, N, P, K, Ca and Mg, as well as leaf nutrient concentrations and yield, but in the first year (2015) it only increased soil pH and organic matter. In both years, application of B influenced root length of the radish significantly. There was a significant interaction effect of biochar and poultry manure, which was attributed to the ability of the B to increase the efficiency of the utilization of the nutrients in the PM. The combination of 50 t ha−1 B and 5 t ha−1 PM resulted in the highest radish yield, with increases in root weight by 193%, 252% and 252% compared with B alone at 50 t ha−1, at 25 t ha−1 and no application of B or PM, respectively. Therefore, for a short season crop like radish the expected benefit of applying B on its own without PM may not be achieved within the first year.
期刊介绍:
Biological Agriculture & Horticulture aims to act as the central focus for a wide range of studies into alternative systems of husbandry, and particularly the biological or organic approach to food production. The Journal publishes work of a sound scientific or economic nature related to any aspect of biological husbandry in agriculture, horticulture and forestry in both temperate and tropical conditions, including energy and water utilization, and environmental impact.