A method for increasing the overwintering rate of Pennisetum

Abstract

A method for improving the overwintering rate of Pennisetum, which is completed by the following steps: (1) After leveling the land and applying sufficient base fertilizer, ditching is carried out, and sowing is carried out when the temperature is stable above 15°C in late April every year; (2) Leave the stubble when cutting and harvesting; (3) After cutting and harvesting, take the soil between the rows and cover the pennisetum stubble; (4) After the roots are covered with soil, cover the weeds between the stubble rows, and remove the Cover the weeds. The furrowing and sowing method of the present invention can play the role of collecting water at the bottom of the ditch and keeping warm at the bottom of the ditch, increasing the effective utilization rate of irrigation water or rainfall, and increasing the temperature of the soil layer at the root of Pennisetum pennisetum. Covering the roots with soil after harvesting can effectively protect the roots from freezing damage. Covering between ridges can maintain surface soil moisture and temperature. The pennisetum overwintering method of the present invention increases the overwintering rate to over 95%, and effectively solves the technical problem of overwintering in the introduction, popularization and application of Pennisetum genus excellent grass species in western my country.

Description

technical field

[0001] The invention relates to the introduction, domestication and cultivation techniques of wild pennisetum. Background technique

[0002] Pennisetum ( Pennisetum Rich) forage is a large genus of grasses, with more than 130 species in the world, widely distributed in tropical, subtropical and temperate regions. my country is one of the countries with the richest pennisetum resources, and 8 wild species of pennisetum have been found to be registered: long-order pennisetum, Lanping pennisetum, pasture pennisetum, and dry pennisetum , Medium-sized Pennisetum, Shaanxi Pennisetum, Sichuan Pennisetum and Tibetan Pennisetum are widely distributed in more than a dozen provinces and regions across the country. grass. Domestic pennisetum has the characteristics of early spring, fast planting, and strong competitiveness with weeds. Through rhizome propagation, it is easy to obtain the clones required for genetic breeding; using the characteristics of parthenogenety, ...