杂草和养分管理对优质蛋白玉米(Zea mays)杂草动态、生产力和经济的影响

Q4 Agricultural and Biological Sciences

Indian Journal of Agronomy Pub Date : 2023-07-01 DOI:10.59797/ija.v68i2.352

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引用次数: 0

摘要

2015 - 2016年和2016 - 2017年，在拉贾斯坦邦乌代普尔Maharana Pratap农业技术大学拉贾斯坦农业学院农学指导农场(农学)进行了田间试验，以评估杂草和营养管理对优质蛋白玉米的影响。试验包括9个杂草管理处理，即杂草检查，播种后15天(DAS)和35天(DAS)的手除草，tembotrione 0.125 kg/ha在20天(DAS)，甲草胺2 kg/ha作为苗期(PE)后(fb)手除草(35天)，阿特拉津0.5 kg/ha作为PE fb手除草(35天)，tembotrione 0.125 kg/ha作为PE fb手除草(35天)，甲草胺2 kg/ha +阿特拉津0.5 kg/ha作为PE fb手除草(35天)，二氯甲草胺2 kg/ha, PE / fb / tembotrione 0.125 kg/ha, 20 DAS，阿特拉津0.5 kg/ha, PE / fb / tembotrione 0.125 kg/ha, 3种营养管理处理，即NPK、NPK + Zn和NPKS + Zn，在分块设计中重复施用3次。阿特拉津0.5 kg/ha和替博替酮0.125 kg/ha处理的杂草密度和干物质减少量分别为8.35和133.6 g。施用阿特拉津0.5 kg/ hm2和腾博三酮0.125 kg/ hm2，籽粒数(367.91)、粒重(82.79 g)、千粒重(212.03 g)和脱壳率(76.58)最高，籽粒产量(4.5 t/ hm2)和秸秆产量(7.5 t/ hm2)显著提高。施用NPKS + Zn显著提高了产量属性，籽粒产量(4.3 t/ha)和秸秆产量(7.2 t/ha)均显著提高。

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Weed dynamics, productivity and economics of quality protein maize (Zea mays) as affected by weed and nutrient-management

A field experiment was conducted during 2015–16 and 2016–17 at Instructional Farm (Agronomy), Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan, to evaluate the effect of weed and nutrient-management on quality protein maize. The experiment consisting of 9 weed-management treatments, viz. weedy check, hand-weeding at 15 days after sowing (DAS) and 35 DAS, tembotrione 0.125 kg/ha at 20 DAS, alachlor 2 kg/ha as pre-emergence (PE) followed by (fb) hand-weeding at 35 DAS, atrazine 0.5 kg/ha as PE fb hand-weeding at 35 DAS, tembotrione 0.125 kg/ha at 20 DAS fb hand-weeding at 35 DAS, alachlor 2 kg/ha + atrazine 0.5 kg/ha as PE fb hand-weeding at 35 DAS, alachlor 2 kg/ha as PE fb tembotrione 0.125 kg/ha at 20 DAS and atrazine 0.5 kg/ha as PE fb tembotrione 0.125 kg/ha at 20 DAS with 3 nutrient-management treatments, viz. NPK, NPK + Zn and NPKS + Zn, were replicated thrice in a split-plot design. The maximum reduction of weed density (8.35) and dry-matter (133.6 g) was recorded with atrazine 0.5 kg/ha fb tembotrione 0.125 kg/ha. Atrazine 0.5 kg/ha fb tembotrione 0.125 kg/ha resulted in maximum number of grains/ cob (367.91), grain weight (82.79 g), 1,000-seed weight (212.03 g) and shelling % (76.58) and ensued significantly higher grain (4.5 t/ha) and stover (7.5 t/ha) yields. Application of NPKS + Zn showed significantly higher yield attributes as well as grain (4.3 t/ha) and stover (7.2 t/ha) yield.

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来源期刊

Indian Journal of Agronomy Agricultural and Biological Sciences-Agronomy and Crop Science

CiteScore

0.50

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0.00%

发文量

期刊介绍： Indian Journal of Agronomy welcomes concise articles presenting original research data based on field experiments on all aspects of agronomy in different crops and related cropping systems. • The journal publishes only full length comprehensive articles based on new approaches/findings in English only. • Review articles are also considered but these are normally solicited by Editorial Board. However, the authors who wish to contribute a review on their own based on their standing in the relevant field may contact the Secretary or Chief Editor with a broad outline before submitting the manuscript.