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- Title
基于产量反应的棉花推荐施肥效应.
- Authors
哈丽哈什·依巴提; 李传龙; 刘欢; 叶新宇; 李青军; 张炎
- Abstract
【Objective】 To evaluate the application effect of cotton nutrient experts system in cotton nutrient management by comparing the effects of fertilizer recommended by them on yield, economic benefit, nutrient absorption and fertilizer utilization of Changji cotton through field experiments.【Methods】 Six treatments were designed in the experiment: the fertilization (NE) recommended in nutrient expert system, no nitrogen fertilization (NE-N), no phosphorus fertilization (NE-P), no potash fertilization (NE-K), soil test formula fertilization (OPTS) and farmers' conventional fertilization (FP).【Results】 Results showed that, partial productivity of N, P2O5 and K2O in the NE treatment was significantly higher than those of OPTS and FP treatment, and increased by 11.43, 7.17 and 4.93 kg/kg compared with OPTS treatment, and 14.19, 7.50 and 25.60 kg/kg compared with FP treatment. Compared with FP treatment, the recovery efficiency of N and K2O in NE treatment was significantly increased by 23.17% and 13.56%, the recovery efficiency of P2O5 was approximately the same as that in FP, and the recovery efficiency of N and P2O5 was significantly increased by 26.54% and 4.19% compared with OPTS treatment, and the recovery efficiency of K2O was approximately the same as that in OPTS. The agronomic efficiency of N, P2O5 and K2O in the NE treatment was 3.27, 2.28 and 5.49 kg/kg, and 2.64, 2.24 and 4.83 kg/kg, respectively, higher than that of FP and OPTS. Compared with OPTS and FP treatment, NE treatment could reduce fertilizer input and balance application of nitrogen, phosphorus and potassium fertilizer, increase the yield of cotton by 4.72% and 5.63%,increased income by 5.64% and 7.74%, respectively. 【Conclusion】 To sum up, the cotton nutrient expert system optimizes the application amount and application method of nitrogen, phosphorus and potassium fertilizer, promotes the absorption and utilization of them in cotton, improves the utilization rate of fertilizer, and has better effect of increasing cotton yields and farmer rate s' income.
- Publication
Xinjiang Agricultural Sciences, 2021, Vol 58, Issue 1, p72
- ISSN
1001-4330
- Publication type
Article
- DOI
10.6048/j.issn.1001-4330.2021.01.009