Summer maize precision fertilization device based on winter wheat stubble amount

Abstract

The invention provides a summer corn precision fertilization device according to the stubble amount of winter wheat, belonging to the technical field of agricultural machinery. The invention can judge land fertility according to the amount of stubble remaining, calculate the nitrogen needed for straw mineralization according to the amount of winter wheat straw returned to the field, and calculate the amount of potassium fertilizer for summer corn in the current season according to the amount of potassium brought in by returning straw to the field. More accurately determine the nutrient ratio and application amount of nitrogen, phosphorus and potassium to achieve precise fertilization. While saving chemical fertilizers, it can also meet the nutrient requirements of summer corn. Avoid the waste of potassium fertilizer resources caused by nitrogen deficiency in plants caused by competition for nitrogen fertilizer in the soil when straw decomposes and excessive potassium application. When the previous crop of winter wheat straw is stubbled, dust can be avoided, environmental pollution can be reduced, the rate of straw mineralization can be increased, the content of soil organic matter can be rapidly increased, and the control of the two-spotted armyworm is significant, and the input of pesticides can be reduced. The invention plays an important role in precise application of chemical fertilizers and reduction of application of chemical pesticides, and at the same time saves labor and time, and reduces labor input.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and more specifically relates to a summer corn precision fertilization device based on the stubble amount of winter wheat. Background technique [0002] The North China Plain is the main production area of ​​winter wheat and summer maize, and the multi-cropping system of winter wheat and summer maize is mainly adopted. Different amounts of winter wheat stubble had important effects on the quality of sowing and fertilization, the amount of straw mineralization that competed with summer maize plants for soil nitrogen, the amount of potassium input in straw, and the occurrence and control of pests and diseases. Most of the sowing and fertilizing equipment in this area is to directly sow summer corn with iron stubble (remaining stubble) after winter wheat is harvested, and some sowing and fertilizing machines perform strip-shaped soil removal in the sowing and fertilizing area, but mos...

AI Technical Summary

Problems solved by technology

During continuous operation of these machinery and equipment, the amount of fertilizer applied and the ratio of nitrogen, phosphorus and potassium nutrients are not easy to adjust, resulting in a fixed amount of fertilizer and the ratio of nitrogen, phosphorus and potassium nutrients. Due to the difference in the amount of stubble of winter wheat straw in some plots, it is easy to cause nitrogen and phosphorus Potassium input ratio and dosage are inappropriate, too much will cause waste of chemical fertilizer resources or burn seedlings, too little will cause short growth of plants and reduce yield; Conducive to environmental protection

Images