Announcements

Job Offers

"Tweeting Growers"

Top 5 -yesterday

Top 5 -last week

Top 5 -last month

Techno-economic feasibility of vegetable residue return in Chinese solar greenhouses

The tremendous scale of protected vegetable cultivation in China incidentally produces considerable vegetable residue (the remaining parts of plants after the final harvest), a group of researchers says. They looked into the low use rate of vegetable residue, resulting in nutrient waste and environmental pressure in China. 

A recent study puts forward vegetable residue directly returned to the soil and investigated its feasibility. Residue return was steadily conducted 5 times in a Chinese solar greenhouse with the cucumber–tomato rotation pattern. Results showed that residue return increased the soil alkali-hydrolyzed nitrogen and available potassium contents by 4.97–26.22% and 9.31–21.92%, respectively, along with slightly reduced soil pH and bulk density by 1.00–5.39% and 6.72–11.81%, respectively. Gemmatimonadetes, Firmicutes, Acidobacteria, Basidiomycota, and Mortierellomycota were the major phyla with noticeable changes when residue return was conducted 5 times. Fruit yield began to obtain a remarkable increase by 5.81–9.26 t·ha−1 after residue return was conducted 3 times, bringing about additional profits of 5382.0–8519.2 USD·ha−1.

"Residue return could cut down the disposal expense of vegetable residues by 480.89 USD·ha−1. Moreover, residue return could supplement nutrients to soil, potentially contributing to reducing chemical fertilizer inputs. In conclusion, in situ vegetable residue return could be considered to be a feasible and sustainable use technique for vegetable residues in the Chinese solar greenhouse," they conclude. 

Read the complete research at www.mdpi.com.


Publication date:



Receive the daily newsletter in your email for free | Click here


Other news in this sector:


Facebook Twitter Rss LinkedIn

© HortiDaily.com 2021

Sign up for our daily Newsletter and stay up to date with all the latest news!

Subscribe I am already a subscriber