When farmers are planting peanuts, fertilization is a technical activity. How do you choose fertilizer, fertilizer, and how to use peanuts? Do you understand? Next, Xiaobian will take you to know more about it.

First, the need for fertilizer in peanuts

The normal growth and development of peanut requires nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, zinc, copper, iron, manganese and other elements. The absorption of nitrogen, phosphorus, potassium and calcium by peanuts is N>K2O>CaO. >P2O5, the ratio of nitrogen, phosphorus, potassium and calcium absorbed by peanuts is 3:0.4:1:0.6. However, the supply of nitrogen by peanuts can reach 70-80%. In fact, the level of nitrogen application is not high, and the nutritional characteristics of potassium and calcium are prominent. In addition, peanuts are also urgently required for boron, molybdenum, iron and manganese, magnesium, sulfur, etc., and are sensitive to reactions.

As can be seen from the above table, the peak of fertilizer consumption of peanuts is the pod-forming period, which is the basis for our scientific fertilization.

Second, the choice of fertilization types

The high yield of peanuts requires relatively high soil fertility. Now the fertilization varieties we produce are mainly three-element compound fertilizer. When conditions permit, organic fertilizer or decomposed farmyard manure should be invested. Moreover, the input of calcium fertilizer in production for so many years is very small, and the base fertilizer should increase the input of superphosphate or calcium magnesium phosphate or gypsum.

In recent years, the occurrence of peanut white mites and fruit rots is related to our partial application of chemical fertilizers. Some scholars believe that the method of “deep turning + bio-organic fertilizer + microbial agents + three-element compound fertilizer” can alleviate the disease. .

Third, the amount of peanut fertilizer

It is recommended to use the base fertilizer as the main method and the topdressing supplement as the supplement. In view of the difficult characteristics of calcium movement in plants, and the characteristics of nutrients such as calcium and peanuts in the growing season, I suggest that you apply calcium fertilizer to the result layer to achieve true calcium supplementation to pods. purpose. However, if a single application of calcium supplementation from the foliar surface, generally only about 5% is transferred to the pod, which does not achieve the purpose of calcium supplementation.

The high-yield field base fertilizer is applied with 120-130 kg of three-element compound fertilizer. The flowering stage results in 10-20 kg of topdressing calcium fertilizer, and 15 kg of urea is applied in the late stage of pod-forming.

The middle-aged field fertilizer is applied with 90-100 kg of three-element compound fertilizer. The flowering stage results in 10-20 kg of topdressing calcium fertilizer, and 12 kg of urea is applied in the late stage of pod-forming.

The low-yield field bottom fertilizer is applied with 60-70 kg of three-element compound fertilizer, and the flowering stage results in 10-20 kg of topdressing calcium fertilizer, and 10 kg of urea is applied in the late stage of pod-forming.

Fourth, fertilization method

Fertilizer application method: 2/3 level fertilization is recommended, and 1/3 is applied to the line;

Calcium fertilizer application method: peanut calcium fertilizer, it is recommended to use sputum or simmer in the cultivating soil;

Urea application method: Urea can be applied before watering or before rain.

Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone

Intramedullary Nail

Intramedullary nails are orthopedic internal fixation devices in medical devices. Intramedullary nails consists of main nail,locking screws,cannulated locking screws,blade screws,lag screws and end cap.

The proximal end of the main nail is provided with a proximal locking screw holes, and the surface of the intramedullary nail is provided with more than one long decompression plane, which can be from the proximal end of the intramedullary nail to the distal end.It is one of the most important orthopedic implants.

Intramedullary Nail,Interlocking Nail,Tibia Intramedullary Nail,Femoral Nail

Jiangsu Aomed Ortho Medical Technology Co.,Ltd , https://www.aomedortho.com