Work

Effects of drip irrigation and topdressing on dry matter weight, mineral nutrient absorption and yield of pod-bearing stage in peanut

Year: 2020

Type: article

Abstract: This study was designed to clarify the effects of different fertilizer types and their mutual application on improving peanut yield, to determine the appropriate type of topdressing fertilizer and mutual application, and provide theoretical basis and technical guidance for scientific fertilization of peanut. Nitrogen (N), calcium (Ca), and boron (B) fertilizer were applied at the pod-pin stage under the condition of mulching drip irrigation in the field and the effects of different types of drip irrigation topdressing on dry matter weight, mineral nutrient absorption and yield of peanut in pod-bearing stage were analyzed. The results showed that the dry matter weight, nitrogen content and accumulation, calcium content and accumulation, and pod yield of peanut stems and leaves were significantly increased by topdressing of N, B, and Ca fertilizer in the pod-pin stage, however, the effect of topdressing of N, B, and Ca fertilizer alone was not as good as that of the combination of N, B, and Ca fertilizer, and the effect of topdressing of N, B, and Ca fertilizer on stem and leaf dry matter weight, nitrogen content and accumulation, calcium content and accumulation, and pod yield was better. Topdressing boron fertilizer could improve the boron content and its accumulation in peanut stems and leaves, while the combination of nitrogen and calcium fertilizer could promote the absorption and accumulation of boron in peanut. Peanut yield and stem (matter weight, nitrogen accumulation, calcium accumulation and leaf boron accumulation) were significantly positively related, stem (stem leaf nitrogen accumulation and leaf weight and the calcium accumulation) were significantly positive correlation, stem leaf nitrogen accumulation and stem leaf nitrogen content were significantly positive correlation, the calcium content in the stem leaf calcium accumulation and leaf were significantly positive correlation, stem leaf boron accumulation with stem and leaf boron content were significantly positive correlation. These results suggest that the application of N, B, and Ca promoted the absorption and accumulation of N, B, and Ca, increased the quality of dry matter, and consequently increased the yield of peanut.

Source: ACTA AGRONOMICA SINICA

DOI: 10.3724/sp.j.1006.2021.04109