| Effects of liquid organic fertilizers with reduced N and P fertilizer application on soil nutrient of drip irrigated cotton field under plastic film mulching |
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| DOI：10.7606/j.issn.1000-7601.2020.02.14 |
| Key Words: cotton organic fertilizer nitroge fertilizer phosphate fertilizer soil nutrient drip irrigation under plastic film mulching |
| Author Name | Affiliation | | LI Yuan | Institute of Soil and Fertilizer and Agricultural Water\|saving, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang 830091, China | | LI Qingjun | Institute of Soil and Fertilizer and Agricultural Water\|saving, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang 830091, China
Key Laboratory of Crop Ecophysiology and Farming System in Desert Oasis Region, Ministry of Agriculture, Urumqi, Xinjiang 830091, China | | ZHANG Yan | Institute of Soil and Fertilizer and Agricultural Water\|saving, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang 830091, China
Key Laboratory of Crop Ecophysiology and Farming System in Desert Oasis Region, Ministry of Agriculture, Urumqi, Xinjiang 830091, China | | Halihashi·Yibati | Institute of Soil and Fertilizer and Agricultural Water\|saving, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang 830091, China
Key Laboratory of Crop Ecophysiology and Farming System in Desert Oasis Region, Ministry of Agriculture, Urumqi, Xinjiang 830091, China | | WANG Ailian | Awati County Agricultural Technology Extension Center, Awati, Xinjiang 843200, China |
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| Abstract: |
| The effects of different proportions of manure and chemical fertilizer on soil nutrition were studied in a yearlong experiment in cotton field under drip irrigation. Eleven treatments were conducted including (1) common urea; (2) 80% common urea; (3) 80% common urea + low content amino acid (80%NP + LAA); (4) 80%common urea + medium content amino acid; (5) 80% common urea + high content amino acid; (6) 80% common urea + low content humic acid; (7) 80% common urea + medium content humic acid; (8) 80% common urea + high content humic acid; (9) 80% common urea + low content biogas slurry; (10) 80% common urea + medium content biogas slurry; (11) 80% common urea + high content biogas slurry. At the bud, flowering, and the mature stages, the soil samples were collected from 0~20 cm and 20~40 cm soil layers in the cotton field and soil pH and contents of organic matter, nitrogen (N), phosphorus (P), and potassium (K) were measured. The results showed that: (1) 80% common urea combine high content humic acid and biogas slurry significantly decreased the soil pH in 0~20 cm soil than common urea at bud stage did. It had the best effect to improve the contents of available N and P; (2) 80% common urea combine high content biogas slurry significantly had the best effect in improving the organic matter and available P in 0~20 cm soil layer than common urea at flowering stage did; (3) 80% common urea with high content biogas slurry significantly increased the organic matter and decreased pH of 0~20 cm soil layer than common urea at mature stage did. In conclusion, 80% common urea with high content biogas slurry had the best effects. It is one of the effective ways to improve the soil fertility and fertilizer utilization in cotton field under drip irrigation in Xinjiang. |
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