Fertilizer special for tobacco in red soil regions of River South

Abstract

The invention discloses a fertilize special for tobacco. The fertilizer special for the tobacco consisting of the following components in percentage by weight: 9.4 to 14.3 percent of nitrogen (N), 10.3 to 13.5 percent of phosphorus pentoxide (P2O5), 29.1 to 34.5 percent of potassium oxide (K2O), 37.2 to 45.1 percent of calcium oxide (CaO), 0.9 to 1.5 percent of magnesium oxide (MgO), 1.1 to 2.5 percent of sulfur (S), 0.01 to 0.045 percent of molybdenum (Mo), 0 to 1.6 percent of zinc (Zn) and 0 to 0.04 percent of boron (B). According to the current situation of soil nutrients of tobacco fields in red soil regions of River South and by combining a fertilizer requirement rule of the tobacco and results of field experiments, the formula has high specificity. Compared with the tobacco fertilizer formulas abroad and at home, the fertilizer contains macroelement nutrients such as N, P, K and the like, and also contains secondary and micro elements in a certain ratio. Therefore, the formula is more suitable for the soil of the tobacco fields in the red soil regions of River South, and has stronger pertinence, more comprehensive, balanced and reasonable nutrients and better actual application effect.

Description

technical field [0001] The invention relates to a fertilizer conforming to the regulation and control of tobacco nutrition in the Jiangnan red soil area, and belongs to the field of agricultural technology. Background technique [0002] Red soil is a representative of the zonal soil in the subtropical region of my country. This region is located in the warm and humid monsoon climate zone of the mid-subtropics, and is rich in light, heat and water resources. The total solar radiation is 96.9-114.5 kcal / cm2 per year, the annual average sunshine is more than 2000 hours, the sunshine percentage is 34-47%, the annual average temperature is 16.3-19.7°C, the frost-free period is 240-307 days, and the accumulated temperature is ≥10°C The temperature is 5034-6343°C, the annual average precipitation is 1341-1934 mm, the annual average relative humidity is 75-83%, and the annual average evaporation is 1171-1956 mm. In this natural environment, the soil formation process has the follow...

AI Technical Summary

Problems solved by technology

These characteristics indicate that the nutrient status of the tobacco field obviously cannot meet the needs of tobacco growth, especially the content of some trace elements is low, which is basically near the critical line of soil nutrient deficiency

In addition, the majority of tobacco farmers are still relatively backward in the way of fertilization. They only pay attention to the fertilization of macronutrients such as nitrogen, phosphorus, and potassium, while the application of moderate elements is relatively small, resulting in long-term consumption of trace elements in the soil. Without effective supplementation, soil fertility is declining