How to deal with corn lodging

There are three types of corn lodging: stem fall, root fall, and stem break. The main causes of lodging are:

First, excessive water and fertilizer jointing period. Such as jointing water and fertilizer is too full, there is prosperous growth, plant slender internodes, underdeveloped mechanical organization, easy to cause stem lodging.

Second, the roots are underdeveloped. Insufficient phosphate fertilizer, poor root growth, poor soil preparation, shallow roots, and underdeveloped aerial roots. Once watered, the roots collapsed after experiencing wind or wind and rain.

Third, before the tassels grow too busy. If the corn grows too profusely before tasseling, the stalk tissue will be tender and weak, and it will break when it encounters wind.

Fourth, the density is too large. One-sided pursuit of high-density production, plant spacing is too small or incomplete seedlings, resulting in crowded between the slender, slender internodes, loose tissue, causing stem down or broken stems.

Fifth, pests and diseases. During the jointing period or before the tasseling, pests and diseases are also susceptible to lodging.

For these reasons, the ways to prevent corn lodging are:

First, rational dense planting. According to the characteristics of soil strength and species, reasonable close planting and full use of light energy can reduce the lodging caused by less and shallow root systems and long internodes.

Second, rational fertilization. Based on the planned maize yield and soil nutrient supply, nitrogen, phosphorus, and potassium fertilization can be combined, combined with the requirement of fertilizer for maize, and the appropriate period and fertilization amount can be determined to effectively prevent lodging.

Third, fertilizing seedlings. For the water-fertilizer-higher plots, the method of controlling the water-feeding fertilizer and seedlings before jointing is adopted, and the root-feeding and stem-down stalks are vigorously controlled.

Fourth, use dwarf resistant varieties.

Fifth, nursery transplanting. Due to the slow seedling period of transplanted corn, the stems of the stems are thick and strong and have strong lodging resistance.

Six, chemical regulation. Generally when the corn 5-6 leaves, spraying 0.015 of MET, 50 kg of liquid medicine with mu, can also play a role in prevention.

For the fallen corn, the following measures can be taken to save it according to the period of lodging: Generally, the principle of management does not affect normal pollination:

First, the lodging before and after the jointing. Because the plants themselves have the ability to restore erection without affecting the normal pollination in the future, they can be lifted without artificial support.

Second, the male and female pollination before and after lodging. At this time, the plants are tall and overwhelming, and the plants are stacked one on top of the other, and it is difficult to restore erectness. This not only directly affects the normal pollination, but also affects the photosynthesis. It must be manually raised, and it should be started early, slowly, and lightly, and combined with soil.

Respiratory & Digestive System Drug

Ambroxol Injection,Cimetidine Injection,Xylometazoline Nasal Spray,Hyoscine Butylbromide Injection

NINGBO VOICE BIOCHEMIC CO. LTD , https://www.pharma-voice.com