Experimental study on the optimal threshold of water and nitrogen quantities for tomato growth under the irrigation with biogas slurry in greenhouse

doi:10.13031/AEA.14255

	Experimental study on the optimal threshold of water and nitrogen quantities for tomato growth under the irrigation with biogas slurry in greenhouse
	Zheng, Jian 3; Zhang, Pingan 3; Cui, Ningbo 1; Y., Wang ; J., Wang ; X., Qi
刊名	Applied Engineering in Agriculture
	2021
卷号	37 期号:2 页码:333-342
关键词	Agricultural robots Crops Efficiency Fertilizers Fruits Greenhouses Irrigation Nitrogen Water supply Agricultural productions Confidence interval Irrigation amounts Irrigation water use efficiency Nutritional qualities Organic fertilizers Partial factor productivity Scientific management
ISSN号	0883-8542
DOI	10.13031/AEA.14255
英文摘要	Biogas slurry, a liquid organic fertilizer, has been widely used in agricultural production. However, the characteristics of high water content and low fertility make it always applied empirically and a scientific and reasonable application of biogas slurry is urgent needed in practical agricultural production. This study aims to explore the effects of various biogas slurry concentrations on the yield, comprehensive nutritional quality (CNQ), irrigation water use efficiency (IWUE) and partial factor productivity of nitrogen (PFPN) of tomatoes in a greenhouse. Seven treatments, including T1(BS1:4; 0.8Ep), T2 (BS1:6; 0.8Ep), and T3(BS1:8; 0.8Ep), T4(BS1:4; 0.6Ep), T5(BS1:4; 1.0Ep), CK (no fertilization; 1.0Ep), CF (conventional chemical fertilization; 1.0Ep) were set up, where BS1:4, BS1:6, and BS1:8 are the volume ratio of biogas slurry to water, 0.6, 0.8, and 1.0 were crop dish coefficients, respectively. Ep is the evaporation amount of a 20 cm standard evaporating dish. The results showed that appropriate application of biogas slurry had a positive impact on crop growth such as total dry biomass, plant height, stem diameter and finally increased the yields, in which T1 treatment was the best. The fruit yield increased with the increase of biogas slurry ratio for treatments at the same irrigation level of 0.8Ep and the maximum yield of single tomato can reach 5.174 kg. The IWUE increased with the decrease of irrigation for treatments at the same biogas slurry ratio of BS1:4 and T4 treatment had the highest IWUE. The CNQ first increased and then decreased with the increase of biogas slurry ratio under the same irrigation level of 0.8Ep and T2 treatment obtained the highest CNQ; but the PFPN decreased with the increase of biogas slurry ratio and T3 treatment acquired the largest PFPN. Within an 80% confidence interval, when the irrigation amount was in a range of 39.233~43.134 L and the nitrogen quantities was 7.983~8.426 g, the yield, IWUE, CNQ, and PFPN can reach ≥80% of their maximums at the same time. Taking into account the growth, yield, fruit quality, and water and fertilizer use efficiency, T1 treatment was the best fertigation strategy for a higher production and better quality. The results can provide some help for scientific management of biogas slurry application in greenhouse. © 2021 American Society of Agricultural and Biological Engineers
语种	英语
出版者	American Society of Agricultural and Biological Engineers
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148351]
专题	能源与动力工程学院
作者单位	1.State Key Laboratory of Hydraulics and Mountain River Development and Protection, College of Water Resources and Hydropower, Sichuan University, Chengdu, Sichuan Province, China; 2.Yang Ling Rui Wo Wr and HP Planning and Design Co. LTD, Yang Ling, Shanxi Province, China 3.College of Energy and Power Engineering, Western China Energy and Environment Research Center, Lanzhou University of Technology, Lanzhou, Gansu Province, China;
推荐引用方式 GB/T 7714	Zheng, Jian,Zhang, Pingan,Cui, Ningbo,et al. Experimental study on the optimal threshold of water and nitrogen quantities for tomato growth under the irrigation with biogas slurry in greenhouse[J]. Applied Engineering in Agriculture,2021,37(2):333-342.
APA	Zheng, Jian,Zhang, Pingan,Cui, Ningbo,Y., Wang,J., Wang,&X., Qi.(2021).Experimental study on the optimal threshold of water and nitrogen quantities for tomato growth under the irrigation with biogas slurry in greenhouse.Applied Engineering in Agriculture,37(2),333-342.
MLA	Zheng, Jian,et al."Experimental study on the optimal threshold of water and nitrogen quantities for tomato growth under the irrigation with biogas slurry in greenhouse".Applied Engineering in Agriculture 37.2(2021):333-342.