Influences of different plastic film mulches on temperature and moisture of soil and growth of watermelon in gravel-mulched land
不同覆膜方式对旱砂田土壤水热效应 及西瓜生长的影响

Gravel-mulched land was the unique and conventional farming system and its planting area was enlarged year by year in arid region of northwest China.The planting area of watermelon in gravel-mulched land reached more than 33% of total area of gravel-mulched land.But the stresses of lower temperature in early spring and water shortage during growth period of watermelon were major limiting factors for watermelon yield increasing in gravel-mulched land.To find the ways improving soil temperature in early sprin...