Introduction of planting time and fertilization techniques of mung bean

Mung bean is a kind of legume food, which has the effect of clearing away heat and detoxification. generally, when it is hot in summer, we will cook a bowl of thick mung bean soup to relieve heat. Mung bean has high nutrition and health care value, and it is planted all over our country, but the requirement for planting environment is not very high. Let's take a look at the introduction of mung bean planting time and fertilization techniques.

First, mung bean planting time

Mung bean has a short growth period and a long sowing period, so it can be sowed in both spring and summer in many places. Generally, the seeds can be sown when the ground temperature reaches 16-20 ℃. The sowing time of mung bean in most of the plots with irrigation conditions is from May 15 to 30, and most of the sandy hills without irrigation conditions are sown from June 12 to 15, and generally spring sowing is from mid-late April to early and middle May. Summer sowing is from late May to the first and middle of June. In the north, the suitable sowing time is short, the annual spring sowing period is from the beginning of May to the end of May, and the summer sowing period is from late May to early June. Spring sowing in Northeast China is in mid-May and summer sowing in mid-late June. Note that mung bean is a temperature-loving crop. If sowing in spring is too early, the individual development is poor, the growth period is prolonged, and the yield is reduced. It is better to sow mung beans early in summer, the seedlings grow healthily, and the flowering and podding stage is in the stage of high temperature and rain, which is beneficial to the formation of flowers and pods, many pods, many seeds, grain weight and high yield.

2. Key points of fertilization techniques for mung bean

1. Characteristics of fertilizer requirement

Mung bean is a crop needed for a large amount of fertilizer. according to the relevant data, we can know that every 100 kg of mung bean will absorb 9.68 kg, 2.93 kg of phosphorus and 3.51 kg of potassium. So there are mainly three kinds of nitrogen, phosphorus and potassium compound fertilizer, which is based on nitrogen, even with the other two fertilizers, to make it grow smoothly and increase yield and quality.

2. Principles of fertilization

Mung bean is a plant with deep roots and large cotyledons. Therefore, when planting, it is necessary to strictly prepare the soil, turn the soil deep and rake fine, so that the soil is consistent in depth and depth, so as to facilitate the smooth emergence of seedlings. Mung bean has rhizobium and can absorb nitrogen, but it still needs fertilization, otherwise the yield is low. When fertilizing, we should follow the principles of farm manure, inorganic fertilizer, mixing agricultural fertilizer and inorganic fertilizer, fully applying base fertilizer and topdressing fertilizer in time.

3. Fertilization method

Before planting, the soil is ploughed and then base fertilizer is applied, which is mainly agricultural fertilizer, plant ash, animal manure and 1000-3000kg/ mu of human feces and urine. Topdressing is generally in the seedling stage and flowering stage. Fertilization at the seedling stage can make the seedlings grow fast and strong. Urea or high nitrogen compound fertilizer 10kg is applied every time, which increases or decreases accordingly according to the actual situation. But in the POD stage of branching and flowering, leaf fertilizer can be sprayed, and urea and potash fertilizer can be used with other elements, so that plants can absorb as soon as possible and improve fertilizer use efficiency.