Rice stubble spring potato groove-expanding soil-hilling anti-frost cultivation method

Abstract

The invention discloses a rice stubble spring potato groove-expanding soil-hilling anti-frost cultivation method. The method includes: A), ridging, wherein a ridge face is 100cm in width, and a ridge furrow is 40cm in width; B), deepening a groove, namely timely deepening the groove after ridging, hoeing the ridge groove to be 25cm below a land face, carrying soil blocks into a ridge to form a soil ridge 30cm in width, and forming two seeding furrows 15cm in width and 13cm in depth together with a ridge-edge soil ridge; C), applying base fertilizer; D), seeding, namely seeding two rows for each ridge, wherein row spacing is 50cm, and plant spacing is 26cm; E), earthing, namely clearing the ridge furrow, leveling the ridge face and earthing to cover potato seedlings; F), filming, namely timely filming after seeding and earthing; G), preventing freezing; H), hilling, namely performing groove expanding and soil hilling when seedling height is about 20cm, wherein hilling elevation is 16-18cm higher than a land face; I), managing. By the method, full-land ploughing and caving are omitted, intertillage weeding times are reduced, seedling emergence time can be earlier about half a mouth due to covering a plastic film after seeding, the plastic film is uncovered after seedling emergence to cultivate strong seedlings through solarization and night exposure, and frost is prevented by covering a heat insulating material at the lowest temperature of 3 DEG C, so that stable and high yield of spring potatoes cultivated in rice stubble winter fallow land is realized.

Description

technical field [0001] The invention relates to a cultivation method for potatoes, in particular to a cultivation method for planting spring potatoes by expanding ditches and choking soil in winter slack fields with rice stubble to prevent frost in southern China. Background technique [0002] After the autumn rice harvest in southern my country, the area of ​​double-cropping rice in autumn is less, and the area of ​​winter fallow is more. There are also certain areas of winter fallow in the middle rice region and late rice region of the double cropping system of rice and wheat (oil). The winter fallow field can be developed and utilized for planting spring potatoes , which is equivalent to the sown area of ​​more than 70 million mu of potatoes in the whole year in our country. The rice stubble field in winter is a new growth point of my country's grain production. Potato is a semi-cold-resistant crop that is rich in nutrients and used as both food and vegetables. It likes co...

AI Technical Summary

Problems solved by technology

[0017] The purpose of the present invention is to overcome the shortcomings of the existing rice stubble spring potato cultivation, which is labor-intensive and time-consuming, delays the season, serious waterlogging, thin covering soil, late seedling emergence, and susceptibility to frost damage. Seedlings, while solving the loose and crisp surface soil, achieve a reasonable soil structure and deep soil layer, and provide a frost-proof farming method for rice stubble, spring potatoes, ditches, and backed up soil