A kind of cultivation method of sweet sorghum for sugar in deserted land

Abstract

The invention provides a method for cultivating sugar-purpose sweet sorghum in sand wasteland. The method comprises the steps that when a tillage mode of convention planting film mulching or furrow cropping is adopted, wherein a mode of planting two plants in each hole is adopted in order to achieve the purpose of harvesting stalks, a mode of planting one plant in each hole is adopted in order toachieve the purpose of harvesting seeds, and a mode of planting one plant in each hole is adopted in order to achieve the purposes of harvesting both the stalks and the seeds; before planting after the soil is ploughed, 30t / ha farmyard fertilizer is applied as base fertilizer, and then 600kg / ha chemical fertilizer is applied for topdressing, wherein a topdressing method comprises the steps that 30-35 days after seedling emergence, 150kg / ha urea is applied, 225kg / ha compound fertilizer is applied in the jointing period and heading period separately, the total amount of irrigation in the growthperiod is 7,800 t / ha, the amount of film pressing water before sowing is 600 t / ha, irrigation from seedling formation to ending of the growth period is conducted 6 times, and the amount of irrigationevery time is 1,200 t / ha. By means of the method, the sugar-purpose sweet sorghum in the sand wasteland grows and develops well and has a high biological yield, soluble sugar accumulation, seed quality and yield, the water saving efficiency is high, little fertilizer is used, the economic investment is low, the water saving amount can at least reach 2,400 t / ha, and the economic benefits are far higher than those of corn planting.

Description

technical field [0001] The invention belongs to the technical field of cultivation methods, and in particular relates to a cultivation method of sugar-used sweet sorghum in sandy wasteland. Background technique [0002] The energy crisis is one of the great challenges facing the development of today's society, and the development of renewable biomass energy to replace mineral energy has become one of the major problems faced by countries and scientists all over the world. With the implementation of the "National Renewable Energy Law", bioethanol has gradually become the main component of my country's new clean energy. Sweet sorghum is a C 4 Plants have the characteristics of high biological yield, high sugar content, strong stress resistance, and wide adaptability. They are widely introduced and planted as important sugar crops, energy sources (ethanol, butanol, etc.) and feed crops. It is reported that the ethanol produced by sweet sorghum per hectare is more than twice t...

AI Technical Summary

Problems solved by technology

The traditional oasis agriculture in the Hexi Corridor is mainly based on planting corn, with a single structure and low efficiency. Especially in the context of the reduction of the national corn planting area, the oasis agriculture dominated by planting corn is facing the challenge of adjusting the structure

It is a direction to adjust the planting structure of the oasis by using sweet sorghum for sugar instead of corn in the desert oasis in Hexi, but it is not clear about its adaptability, whether it saves water, how to cultivate it, and water and fertilizer management.

Images