The output value of sandy land exceeds the standard

Dajihan Village, Xiaojihan Township, Yuyang District, Yulin City, Shaanxi Province。dafabet loginThis is a typical sandy beach area in northern Shaanxi。Past，The yellow sand that fills the sky all year round gradually wipes out people’s enthusiasm for farming。Since 2009，Shaanxi Provincial Land Engineering Construction Group implements sand wasteland remediation project here，Tian Chengfang is here now，The road is ready，Lin Chengpai，Already a modern agriculture demonstration area。

“When they first started doing it，Put the arsenic sandstone into the ground，Arsenic sandstone is used to build roads here，How to grow crops？We also filed a complaint with the Provincial Department of Land and Resources！Unexpected result，The yield of potatoes grown in the first year reached 6,000 kilograms per mu，Later, we specially sent a banner！"The man in front of me named Zhang Huxiang told the author，Now the average output value per mu here exceeds 4,000 yuan，More than many fertile fields in Guanzhong。

How to do it？There is only sand and arsenic sandstone，How was the earth created？

arsenic sandstone，It becomes weathered when exposed，It raises dust when the wind blows，Looses when exposed to water，Called “environmental cancer”；Sand leaks water and fertilizer，Cannot form soil aggregate structure，Is the “culprit” leading to the ecological degradation of land resources。

But research found: arsenic sandstone and sand，One retains water and the other leaks，One is rigid and the other is breathable，Just complementary。After repeated research and trial planting with different ratios，Researchers are finally in 14 experimental fields，Suitable potatoes determined、Different mixing ratios of various crops such as corn and soybeans。The clay and silt particles in the newly formed soil in the tillage layer are about 30%，A crust of about 1 mm is formed on the surface，Fixed the flow dafabet loginof sand，It has an unexpected effect on retaining water and inhibiting evaporation。

Two "harms" become one "treasure"，Fertile farmland has finally been created！The average potato yield per mu has exceeded 5,000 kilograms for several consecutive years，The average corn yield exceeds 1,600 jins。

Important for desertification control in the north

Mao Zhi, academician of the Chinese Academy of Engineering、Shi Yulin、Nanzhibiao、Fu Bojie, an academician of the Chinese Academy of Sciences, and others have visited the project site several times，This kind of arsenic sandstone and sand are combined into soil to form high-yielding fertile land，The land reclamation project with obvious sand fixation effect is highly praised。

By Vice President of the International Geographical Union、Nine appraisal committee experts led by researcher Liu Changming, an academician of the Chinese Academy of Sciences, conducted an on-site inspection、After comprehensive evaluation, it was agreed that the research results are original and have important promotion value，Reached the international leading level of similar research，It is of great significance to control desertification in northern China, where desertification is very serious！The "core technology and engineering demonstration of arsenic sandstone and sand composite soil formation in Mu Us Sandy Land" won the first prize of the 2012 Shaanxi Provincial Science and Technology Award。

Introduced by Wang Shuguang, Manager of Yulin Land Development Project Department of Shaanxi Land Engineering Construction Group，Yulin is located on the edge of Mu Us Desert，Unused land accounts for 45% of the total unused land area in the province.60%，Sand wasteland accounts for 91%.65%。"After land consolidation，This place has great potential to become the second granary of Shaanxi。”