前茬作物和肥料对后茬小麦（Triticum aestivum）生长、产量和养分需求的影响

Q4 Agricultural and Biological Sciences

Indian Journal of Agronomy Pub Date : 2024-05-05 DOI:10.59797/ija.v69i1.5479

JOSHI JESAL P., P.P. CHAUDHARI, P.H. PATEL

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引用次数: 0

摘要

在 2020-21 年和 2021-22 年连续两个雨季（harif）和冬季（rabi）期间，在古吉拉特邦萨尔达克鲁希纳加尔丹蒂瓦达农业大学 C.P. 农学院进行了一项田间试验，研究前作和肥料对后作小麦（Triticum aestivum L. ）生长、产量、经济效益和养分需求的影响。实验采用分小区设计，由 4 种旱作组成，即青稞 [Vigna radiata (L.) R. Wilczek]、芝麻 (Sesamum indicum L.)、珍珠粟 [Pennisetum glaucum (L.) R.Br.] 和饲料高粱 [Sorghum bicolor (L.) Moench] 作为主小区。Moench）]为主田，5 种肥料处理，即 100%RDF（120 千克氮 + 60 千克 P2 O5 + 40 千克 K2 O/公顷）；75%RDF；50%RDF；75%RDF + 磷酸盐溶解菌 + PSB；50%RDF + 磷酸盐溶解菌 + PSB 为副田，4 次重复。小麦的生长参数和产量属性较好，这反映在小麦籽粒（4.78 吨/公顷）和秸秆（6.41 吨/公顷）产量的增加上。在不同的肥料处理中，施用 100% RDF 的小麦谷物产量（4.60 吨/公顷）和秸秆产量（6.20 吨/公顷）明显更高。在青禾苗后种植小麦并施用 100% RDF 肥料的情况下，谷物和秸秆对养分的吸收增加。青芒草-小麦连作和小麦施用 100% RDF 或 75% RDF 肥料以及接种 Azotobacter + PSB 种子可获得更高的净收益和 B:C 比率。

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Preceding kharif crops and fertilizer influence on growth, yield and nutrient requirement of succeeding wheat (Triticum aestivum)

A field experiment was conducted during 2 consecutive rainy (kharif) and winter (rabi) season each of 2020–21 and 2021–22 at C.P. College of Agriculture, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar, Gujarat to study the effect of preceding kharif crops and fertilizer on growth, yield, economics and nutrient requirement of succeeding wheat (Triticum aestivum L.) crop. The experiment was laid out in split plot design comprising of 4 kharif crops, viz. greengram [Vigna radiata (L.) R. Wilczek], sesame (Sesamum indicum L.), pearl millet [Pennisetum glaucum (L.) R.Br.] and fodder sorghum [Sorghum bicolor (L.) Moench] as main plots and 5 fertilizer treatments, viz. 100% RDF (120 kg N + 60 kg P2 O5 + 40 kg K2 O/ha); 75% RDF; 50% RDF; 75% RDF + Azotobacter + PSB (phosphate solubilizing bacteria); and 50% RDF + Azotobacter + PSB as sub plots with four replications. Wheat grown after kharif greengram had better growth parameters and yield attributes which was reflected in an increase in grain (4.78 t/ha) and straw (6.41 t/ha) yield of wheat. Among different fertilizer treatments, wheat fertilized with 100% RDF recorded significantly higher grain (4.60 t/ha) and straw yield (6.20 t/ha). Nutrient uptakes by grain and straw increased under wheat grown after greengram and fertilized with 100% RDF. Greengramwheat crop sequence and wheat fertilized with either 100% RDF or 75% RDF along with Azotobacter + PSB seed inoculation earned higher net realization and B:C ratio.

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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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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.