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- Title
Manure combined with chemical nitrogen can increase wheat yield, reduce nitrate leaching.
- Authors
Long Ma; Lei Shi; Shuting Wang; Taotao Wang; Kai Wang; Ran Zhang; Wei Zheng; Ziyan Li; Bingnian Zhai
- Abstract
A 6-yr (2014-2020) experiment to study the effects of manure combined with chemical fertilizers on wheat (Triticum aestivum L.) yield, soil nitrate nitrogen content and nitrate nitrogen reserves in Semi-arid region of northwest China. The experiment was conducted by two factors: (1) manure, and (2) five chemical nitrogen rates of 0, 75, 150, 225, and 300 kg N ha-1. The research show that the 6-year mean the manure group significantly increased the ear number compared with the no-manure group, significant increased wheat production except for N225 and N300 treatments; the no-manure group highest ear number and kernels per ear was N225 treatment, the highest 1000-kernel weight was N75 treatment; the manure group the highest ear number was N225 treatment, the highest kernels per ear was N300 treatment and the highest 1000-kernel weight was N0 treatment. With the increase of nitrogen application rate, the yield increased first and then decreased. It can be seen from the curve that the no-manure treatment highest yield was 5766 kg ha-1 with N-rates 242.5 kg ha-1; the manure treatment highest yield was 6202 kg ha-1 with N-rate 190.2 kg ha-1; the manure treatment could reach the yield 5766 kg ha-1 only with N-rates 97.2 kg ha-1. The manure treatment could reduce 59.9% nitrogen to reach the highest yield 5766 kg ha-1 compared with nomanure treatment. Manure treatment did not increase soil nitrate nitrogen and nitrate nitrogen storage with less than 150 kg N ha-1 compared with no-manure treatment. Application of manure in Semi-arid region was recommended that 30 t ha-1 manure combined with 75-150 kg N ha-1.
- Subjects
CHINA; NITROGEN in soils; NITROGEN fertilizers; MANURES; FERTILIZERS; GRAIN yields; WHEAT; ARID regions; WINTER wheat; LEACHING
- Publication
Pakistan Journal of Agricultural Sciences, 2022, Vol 59, Issue 1, p167
- ISSN
0552-9034
- Publication type
Article
- DOI
10.21162/PAKJAS/22.144