Fertilization methods for high-yield cultivation of summer maize in fluvo-aquic soil areas in northern Henan taking into account environmental capacity

Abstract

The invention relates to an environment capacity-balanced high-yield cultivation fertilizing method for summer maize of the meadow soil district of the North Henan. The environment capacity-balanced high-yield cultivation fertilizing method includes steps that (1) smashing all the winter wheat straw and mulching, basically applying nitrogenous fertilizer according to 76-112 kg / hm2 weighted by N content, phosphatic fertilizer according to 100-200 kg / hm2 weighted by P2O5 content and potash fertilizer according to 120 kg / hm2 weighted by K2O content, wherein tillage is not needed; (2) interplanting at wheat ridges in 5 to 10 days before harvesting wheat or performing non-tillage seeding after harvesting the wheat, at latest finishing seeding on 10th June, mechanically sowing maize seeds in line, wherein the sowing depth is 3 to 5 centimeters, and the plant density is 55000-72000 plant / hm2 at the seedling stage; dressing nitrogenous fertilizer according to 76-112 kg / hm2 weighted by N content at the small bell-mouth stage, and watering timely; (4) after the maize bracts yellow for 7 to 10 days, harvesting when the milk lines disappear and the base black layers appear. The environment capacity-balanced high-yield cultivation fertilizing method for the summer maize of the meadow soil district of the North Henan uses maize-soil-fertilizer as a system, the fertilizing is reasonable, the fertilizer input seeks high maize yield and environment friendliness, the non-point source pollution is prevented scientifically, and the agricultural production and environment protection develop harmoniously.

Description

technical field [0001] The invention belongs to the technical field of crop cultivation, and in particular relates to a method for high-yield cultivation and fertilization of summer maize in a fluvo-aquic soil area in northern Henan, which takes environmental capacity into account. Background technique [0002] Fluvo-aquic soil is the soil formed by river sediments affected by groundwater movement and farming activities. It is named after the phenomenon of night tide. It belongs to semi-aqueous soil. Its main characteristics are flat terrain and deep soil layer. It is mainly distributed in river alluvial Plains, delta floods and low terraces. Northern Henan is located in the middle of the North China Plain, the soil is mainly fluvo-aquic soil, the terrain is flat, the climate conditions are relatively suitable, the water resources are sufficient, and the irrigation and drainage are convenient, which is very beneficial to the development of agricultural production. my country...

AI Technical Summary

Problems solved by technology

Therefore, it is very important to solve the contradiction between the continuous high yield of summer maize and the protection of the ecological environment through fertilization in the fluvo-aquic soil area of ​​northern Henan. In terms of impact, there are relatively few studies on the amount of nitrogen and phosphorus fertilization that takes into account environmental safety while ensuring stable yields, and there is a lack of production measures that can be promoted in agricultural practice.

Images