Fertilizing method capable of improving lodging resistance of alfalfa plants

Abstract

The invention discloses a fertilizing method capable of improving the lodging resistance of alfalfa plants. The fertilizing method comprises the following steps: step one, mixing a first soil layer with the depth of above 15 cm with a first organic fertilizer and vermiculite to obtain first soil before sowing; step two, mixing a second soil layer with the depth of 15 to 30 cm with mixed powder anda second organic fertilizer to obtain second soil; step three, after mixing and stirring a third soil layer with the depth of below 30 cm with a third organic fertilizer uniformly, paving the mixturein a room of 25 to 28 DEG C for 12 to 18 h so as to obtain third soil; and step four, paving liquid storage layers between the third soil and the second soil and between the second soil and the firstsoil respectively so as to obtain an alfalfa planting land. Fertilization is carried out on the soil of the planting land in batches, the fertilizer with the ingredients in proportion is applied at different periods so as to improve the lodging resistance of alfalfa, so that the purpose of improving the alfalfa yield and product quality is reached.

Description

technical field [0001] The invention relates to the field of alfalfa planting. More specifically, the present invention relates to a method for improving lodging resistance of alfalfa by applying different fertilizers to soil layers of different depths and at different stages of alfalfa growth. Background technique [0002] Alfalfa is known as the "King of Forage Grass". It not only has high yield, but also has excellent grass quality, and all kinds of livestock and poultry like to eat it. The current planting area of ​​alfalfa in my country is about 1.33 million hm 2 . With the development of the commodity economy, the scale of alfalfa industrialization has developed rapidly in recent years, and the planting area of ​​alfalfa is expanding. However, in the main producing areas of alfalfa, there is a common problem of uncoordinated vegetative growth and reproductive growth, that is, in humid climates 1. Under good fertility conditions, alfalfa is prone to leggy growth, exc...

AI Technical Summary

Problems solved by technology

With the development of the commodity economy, the scale of alfalfa industrialization has developed rapidly in recent years, and the planting area of ​​alfalfa is expanding. However, in the main producing areas of alfalfa, there is a common problem of uncoordinated vegetative growth and reproductive growth, that is, in humid climates 1. Under good fertility conditions, alfalfa is prone to leggy growth, excessive elongation of base internodes, thin tissue, and fewer branches, resulting in alfalfa being prone to lodging, thereby reducing the number of pods and pods of alfalfa, and ultimately reducing Alfalfa Quality and Yield

At present, in order to alleviate the contradiction between vegetative growth and reproductive growth, most of the main production areas adopt reasonable cultivation and physiological measures or apply anti-lodging agricultural chemicals. The former effect is poor and cannot fundamentally improve the lodging resistance of alfalfa; The latter leads to excessive agricultural pesticide residues in the field, and chemical substance residues in alfalfa exceed the standard, which does not meet the forage quality standards

[0003] There are few reports on improving the lodging resistance of alfalfa through fertilization methods, and in the prior art, in the whole process of alfalfa cultivation, the fertilizers applied are mostly the same kind and the same amount, without considering the different stages of alfalfa growth and the different alfalfa. The nutrients required by the deep root system are different, which cannot fundamentally solve the contradiction between the vegetative growth and reproductive growth of alfalfa, resulting in a lot of waste of fertilizer, and most importantly, it leads to serious lodging of alfalfa, which greatly reduces the yield and product of alfalfa quality