Effects of Long-term Fertilization on Fertility of Lateritic Red Loam Paddy

• Published in: Hunan agricultural science & technology newsletter : HASTN Vol. 18; no. 8; pp. 1437 - 1442
• Main Authors: Huang, Jinsheng, Xie, Rulin, Zeng, Yan, Zhou, Liuqiang, Ou, Huiping, Zhu, Xiaohui, Tan, Hongwei
• Format: Journal Article
• Language: English
• Published: Changsha Wu Chu (USA-China) Science and Culture Media Corporation 01.08.2017
• Subjects: Agricultural production; Animal wastes; Annual variations; Carbon cycle; Cereal crops; Double cropping; Ecology; Experiments; Fertilization; Fertilizers; Food safety; Loam; Nitrogen; Nutrient cycles; Nutrients; Nutrition; Organic chemistry; Organic fertilizers; Organic matter; Organic soils; Organic wastes; Phosphorus; Potassium; Rice; Rice fields; Soil dynamics; Soil fertility; Soil improvement; Soil organic matter; Soil sciences; Soils; Straw; China
• ISSN: 1009-4229

Long-term location experiment can realize systematic study on the variation of soil fertility and change rule of fertilizer efficiency, overcome the impact of climate and annual variation on the fertilization effect, and the long-term location experiment is also the key to ensuring future global food safety and improving the control power over global carbon and nutrient cycling management. [...]it is of great theoretical significance for the improvement of soil fertility to study the evolution rule of soil fertility under the long-term application of different fertilizers in lateritic red loam paddy field. There are rather few reports on the effect of longterm fertilization on soil fertility in the double cropping rice planting area in lateritic red loam. [...]in this study, with the paddy soil of lateritic red loam as the study object, the dynamic change rules of the soil fertility of lateritic red loam paddy field under different long-term fertilization conditions were analyzed, with the aim to provide basis for the rational fertilization and soil nutrient fertility regulation in reddish paddy soil. [...]the effect of high nitrogen treatment was better than that of low nitrogen treatment on improving soil total nitrogen. MA et al.5121 found that in addition to the supplement application of straws, the single application of chemical fertilizer could also improve soil organic matter content, but the combined application of chemical fertilizer with straws was more favorable for the accumulation of soil organic matter. [...]the combination of chemical fertilizer with straw and organic manure is one of the effective ways to improve soil fertility. 0n the basis of continuous application of straw returning and organic fertilizer, the application of chemical fertilizer can improve soil nutrient.