Technical advantages of Potato cultivation with large ridges and close planting

Potato has been planted in China for more than 400 years, but it is still the small ridge cultivation mode of 65cm, with an average yield of 26000 kg/hm. This planting method results in shallow soil, insufficient soil storage capacity, easy exposure of potato pieces and an increase in abnormal potatoes. At the same time, due to the small ridge distance and large plants, the ridges are silted up, which is not conducive to ventilation, excessive humidity and the formation of field microclimate. It is very easy to cause destructive disease-- the occurrence and epidemic of potato late blight, resulting in a large number of diseased potatoes, or even no production. the main potato producing countries abroad generally adopt the cultivation method of large ridge 80cm-90cm close planting, with an average of 60, 000 kg/hm. Since 1997, we have demonstrated and popularized the mechanized potato large ridge close planting cultivation technique. After several years of technical improvement, this technology has been mature and stable. The yield is more than 20% higher than that of conventional planting.

I. technological innovation

The main contents are as follows: 1. A tillage model with deep loose ploughing as the main body, fishing, wading, intertillage management and mechanical harvesting is established, which not only improves the efficiency, but also saves a lot of manpower and material resources.

2. The traditional planting method has been changed. The ridge distance is 80 cm and the plant distance is 17 cm. After the ridge distance is enlarged, it is beneficial for high-horsepower machinery to work in the field during the whole crop growing period.

Second, the main advantages of technology

The main advantages of this technology are "three high and one low": (1) the degree of standardization is high, because of the large distance between ridges, it is suitable for large machinery operation, which is conducive to cultivation technology, production standardization and operation standardization. (2) High soil moisture, drought and waterlogging resistance, soil moisture conservation and soil moisture conservation. Because the ridge increases the soil storage capacity of the ridge, it makes the ridge resist drought and reduce the erosion of Rain Water. (3) the yield and quality are high, because the ridge can be operated mechanically during the whole production period, which is beneficial to layered soil cultivation and high soil cultivation, avoids the exposure of potato tubers and improves the quality and yield of potato. (4) the disease is low and the disease prevention effect is good. Due to the increase of the distance between the ridges, the ventilation between the ridges is visible, the degree of depression is reduced, the air humidity between the ridges is reduced, the occurrence of diseases such as potato late blight can be effectively reduced, the loss is reduced, and the yield is increased.