The application effect of wheat straw-based polymer slow release fertilizer in tomato

doi:10.14088/j.cnki.issn0439-8114.2019.09.012

Abstract

Abstract: In order to explore the practical application effect of water-retaining polymer slow release fertilizer in agriculture, taking the non-water-retaining polymer slow release fertilizer containing nutrient element NPK（PSRF） and PSRF and water absorbing resin SAP_WS physical mixing （PSRF+SAP_WS） as control, the effects of polymer-release slow-release fertilizer with semi-interpenetrating network structure （SI-PSRF/SAP_WS） on soil nitrogen nutrient content, soil enzyme activity, tomato plant physiological characteristics and tomato quality were studied by pot experiment. The results showed that, compared with PSRF, the contents of NO₃^--N and NH₄⁺-N in the soil treated by SI-PSRF/SAP_WS were increased by 45.16% to 75.46%, 52.85% to 81.80%, respectively. Soil urease activity treated by SI-PSRF/SAP_WS was significantly higher than PSRF and PSRF+SAPWS treatment, but there was no significant difference in the effects of three fertilizations on soil catalase activity. Compared with no fertilization control, the actual yield of tomato applied fertilization was 2.5 times, 2.8 times and 3.5 times, respectively, and the actual tomato yield of SI-PSRF/SAP_WS treatment was 1.4 times and 1.2 times that of PSRF and PSRF+SAP_WS, respectively. Lycopene of tomato treated by SI-PSRF/SAP_WS was 15.26% lower than PSRF. In conclusion, SI-PSRF/SAP_WS can significantly improve soil nitrogen nutrient content, soil enzyme activity, tomato yield and quality, and can be widely used in agricultural actual production.

Key words: wheat straw, slow-release polymeric fertilizer, soil nutrients, tomato （Lycopersicon esculentum Miller）, quality yield

CLC Number:

S143

ZHAO Hai-dong, SONG Jiang, XIANG Yang, ZHAO Gui-zhe, LIU Ya-qing. The application effect of wheat straw-based polymer slow release fertilizer in tomato[J]. HUBEI AGRICULTURAL SCIENCES, 2019, 58(9): 52-57.

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