拉贾斯坦邦东南部地区豌豆生育水平和叶面营养的影响

Q4 Agricultural and Biological Sciences

Indian Journal of Agronomy Pub Date : 2023-07-01 DOI:10.59797/ija.v68i2.353

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引用次数: 0

摘要

本试验于2016-17、2017-18和2018-19冬季(rabi)季在拉贾斯坦邦哥打农业大学进行，旨在评估肥力水平和叶片营养对大田豌豆(Pisum sativum L.)的影响。试验包括3种推荐施肥水平(75%、100%和125%)和5种叶面喷施[水喷施、尼木包覆尿素2%、氮磷钾(19:19:19)0.5%、氮磷钾(17:44:0)0.5%和氮磷钾(17:0:50)0.5%]在开花前和结荚期。结果显示,最大,显著提高株高(168.21厘米),分公司/工厂(3.12),结节计数(23.75),根瘤干重(35.87 g /植物),豆荚/植物(61.90),种子/ pod(3.78),籽粒产量(2350公斤/公顷),净回报率(' 52889 /公顷)和好处:成本比率(3.02)与125%的应用程序记录RDF(25公斤N + 50公斤P + 25公斤K + S + 6.25公斤锌25公斤/公顷),7.32,10.64,13.54,11.40,15.81,12日,17日,26.82,32.18和16.60%的增长超过75%的RDF。125% RDF处理的养分含量(种子N: P: K: S 3.30: 0.54: 1.18: 0.40%，秸秆1.69:0.48:1.51:0.31%)和吸收量(种子N: P: K: S 77.57: 12.59: 27.68: 9.42 kg/ha，秸秆58.14:16.35:51.99:10.67 kg/ha)均高于其他处理。叶面施用氮磷钾(19:19:19)@ 0.5%，花前和荚果形成期的株高(167.76 cm)、枝/株(3.14 cm)、节数(23.77 g)、节干重(36.36 g/株)、荚/株(63.43 g)、种子/荚果(3.89 g)、籽粒产量(2250 kg/ha)、净收益(50,835 kg/ha)和效益成本比(3.06)显著高于其他处理，分别比对照提高9.69、12.95、8.69、10.06、23.38、18.24、12.84、17.19和15.47%;但在花前和结荚期，氮磷钾(17:44:0)@ 0.5%的氮磷钾处理效果较好。同样，叶面施用氮磷钾(19:19:19)@ 0.5%和氮磷钾(17:44:0)@ 0.5%处理下，种子和秸秆对NKS的吸收高于其他处理。

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Effect of fertility levels and foliar nutrition in fieldpea (Pisum sativum) under south - eastern Rajasthan

An experiment was conducted during the winter (rabi) season of 2016–17, 2017–18 and 2018–19 at the Agriculture University, Kota, Rajasthan, to evaluate the effect of fertility levels and foliar nutrition on fieldpea (Pisum sativum L.). The experiment consisted of 3 recommended dose of fertilizers (RDF) levels (75%, 100% and 125%) and 5 foliar sprays [water spray, neem-coated urea 2%, NPK (19 : 19 : 19) 0.5%, NPK (17 : 44 : 0) 0.5% and NPK (0 : 0 : 50) 0.5%] at pre-flowering and pod-initiation stages. Result revealed, that the maximum and significantly higher plant height (168.21 cm), branches/plant (3.12), nodule count (23.75), nodule dry weight (35.87 g/plant), pods/plant (61.90), seeds/pod (3.78), grain yield (2350 kg/ha), net returns (`52,889/ha) and benefit : cost ratio (3.02) were recorded with application of 125% RDF (25 kg N + 50 kg P + 25 kg K + 25 kg S + 6.25 kg Zn/ha) with 7.32, 10.64, 13.54, 11.40, 15.81, 12,17, 26.82, 32.18 and 16.60% increase over 75% RDF. Application of 125% RDF recorded the maximum nutrient content (N : P : K : S 3.30 : 0.54 : 1.18 : 0.40% in seed and 1.69 : 0.48 : 1.51 : 0.31% in straw) and uptake (N : P : K : S 77.57 : 12.59 : 27.68 : 9.42 kg/ha in seed and 58.14 : 16.35 : 51.99 : 10.67 kg/ha in straw) over the other treatments. Among foliar applications, NPK (19 : 19 : 19) @ 0.5% at pre-flowering and pod- initiation stage resulted in the maximum and significantly higher plant height (167.76 cm), branches/plant (3.14), nodule count (23.77), nodule dry weight (36.36 g/plant), pods/plant (63.43), seeds/pod (3.89), grain yield (2,250 kg/ha), net returns (`50,835/ha) and benefit: cost ratio (3.06) over rest of treatments with 9.69, 12.95, 8.69, 10.06, 23.38, 18.24, 12.84, 17.19 and 15.47% increase over the control; however, it recorded at par results with NPK (17 : 44 : 0) @ 0.5% at pre-flowering and pod-initiation stage. Similarly, higher NKS uptake in seed and straw was observed under foliar application of NPK (19 : 19 : 19) @ 0.5% and P uptake under NPK (17 : 44 : 0) @ 0.5% than the other treatments.

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来源期刊

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

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0.50

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0.00%

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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.