نتایج جستجو برای: subsoil
تعداد نتایج: 1306 فیلتر نتایج به سال:
To compare the effects of various nitrogen (N) fertigation frequencies on yield and fruit quality of Thomson navel orange, a field study was carried out in a randomized complete blocks design with five treatments and four replications during three years. Treatments included a subsoil N fertilizer placement (with drip irrigation) and four N fertigation frequencies (2, 4, 6 and 8 applications per...
The Qinghai–Tibetan Plateau is the highest plateau in world and sensitive to climate change. dynamics of soil enzyme activities microbial communities are good indicators alpine biochemical processes during warming. We collected topsoil (0–10 cm) subsoil (10–20 samples at altitudes 3200–4000 m; determined β-1,4-glucosidase (BG), cellobiohydrolase (CBH), β-1,4-N-acetyl-glucosaminidase (NAG) acid ...
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