Modern Concepts in Fertilizer Application to Enhance Soil Health

Author(s):  
Saurabh Tyagi ◽  
R.K. Naresh ◽  
M.P. Gautam ◽  
Mukesh Kumar ◽  
S.P. Singh ◽  
...  
2021 ◽  
Vol 57 (4) ◽  
pp. 147-149
Author(s):  
M. Jayalakshmi ◽  
G. Prasadbabu ◽  
B. H. Chaithanya ◽  
R. Bindhupraveenaand ◽  
T. Srinivas

Frontline demonstrations were carried out to study the soil test-based fertilizer application on yield, soil health and economics in rice during the kharif seasons of 2017, 2018 & 2019 in farmers’ fields of Kurnool district of Andhra Pradesh. The demonstrations conducted in ten locations revealed that application of nitrogen, phosphorus and potassium based on soil test values resulted in an average yield increase of 5.01 per cent over the farmer’s practice. Demonstration plots recorded an average B: C ratio of 2.9 against farmers’ practice of 2.4 and the technology index reduced from 3.84 to 1.53 per cent. The organic carbon content increased from 0.45 to 0.50 per cent due the application of farmyard manure based on soil test value. The soil test based fertilizer application resulted in higher yield, net returns, B:C ratio and organic carbon content and low technology index indicates the feasibility of technology to adopt at farmers’ level.


PLoS ONE ◽  
2020 ◽  
Vol 15 (12) ◽  
pp. e0243301
Author(s):  
Peina Lu ◽  
Tony Yang ◽  
Lijun Li ◽  
Baoping Zhao ◽  
Jinghui Liu

The application of organic amendments to saline-alkaline soil has been recommended as an agricultural strategy to improve crop productivity and soil health. However, there has been limited research on how organic soil amendment strategies affect the health of oats and their associated rhizosphere fungal communities in saline-alkaline conditions. Thus, the objectives of this study were to understand the effects of oat cultivars with contrasting saline-alkaline tolerances and different amendments on plant morphologies, root exudates (soluble sugars and organic acids), and rhizosphere fungal communities in a saline-alkaline environment. Experiments were conducted on a saline-alkaline tolerant cultivar, Baiyan2, and a saline-alkaline sensitive cultivar, Caoyou1, under four different organic amendment strategies: 1. control (no amendment application), 2. bio-fertilizer application, 3. rotten straw application, and 4. a co-application of bio-fertilizer and rotten straw. Results showed that plant morphological characters of Baiyan2 were better than Caoyou1, and that soluble sugar and organic acid levels in the rhizosphere of Baiyan2 were significantly lower than Caoyou1. Compared to the control, oat root and plant development was significantly improved by the combined bio-fertilizer and rotten straw amendment. Bio-fertilizer application promoted malic and citric acid levels, contributing to a higher total organic acid level, and significantly increased the abundance of Rhizopus arrhizus and decreased the abundance of the fungal pathogens Alternaria, Cladosporium, Sarocladium and Heydenia of Ascomycota in both oat cultivars. All amendment treatments containing rotten straw, except the combined amendment in Baiyan2, significantly increased the relative abundance of Ascomycota (specifically Gibberella, Talaromyces, Fusarium, and Bipolaris) and decreased the relative abundance of R. arrhizus by reducing soluble sugar and organic acid levels. For the combined amendment in Baiyan2, there were no significant changes in Gibberella and Rhizopus between the control and amendment treatment. Our results suggest that co-application of bio-fertilizer and rotten straw, combined with a tolerant oat cultivar, is an effective method to increase crop productivity and enhance soil health in a saline-alkaline environment.


2020 ◽  
pp. 1-11
Author(s):  
Clement Kyei Sarpong ◽  
Xiaofeng Zhang ◽  
Qili Wang ◽  
Wenjing Wang ◽  
Zameer Hussain Jamali ◽  
...  

The overuse of agrochemicals for agricultural productivity to meet the global food demand of the rapidly growing human population is a great environmental threat, particularly for aquatic ecosystems. Being associated intimately with plant health, growth, and productivity, the plant microbiome is emerging as a promising environmentally friendly and sustainable resource for agricultural productivity. For the past decades, our understanding of the interactions between plants and microorganisms and our knowledge of how to improve the plant microbiome by using microbial inoculants has increased significantly. A better understanding of the impact of the plant microbiome on mineral resources will benefit plant and soil health. In this review, we highlight the importance of microbial inoculants and their interactions with mineral fertilizers in enhancing crop productivity, as well as current challenges.


Author(s):  
P.S. Naruka Shilpi Verma ◽  
C.P. Pachauri S.S. Sarangdevot ◽  
Shilpi Kerketta S.S. Bhadauria ◽  
J.P. Singh

Author(s):  
R. Manimekalai ◽  
V. A. Vijayashanthi ◽  
P. Yogameenakshi ◽  
P. Santhi ◽  
G. Sathish

Soil Health plays a vital role to ensure agricultural production in a sustainable manner. The basic objective of the soil testing is to provide recommendations to the farmers for the optimum and economic use of fertilizers and better soil management practices to increase agricultural production in their farm. The present study was conducted to analyze the adoption of soil testing and Soil Health Cards for fertilizer management conducted by Krishi Vigyan Kendra (KVK), Tirur, Tiruvallur district. The data revealed that the number of conduct of awareness and training programmes on soil health management and soil samples analysed (30 nos. to 240 nos.) at KVK Tirur increased from 2012 to 2018. Results indicated that highest percentage of beneficiaries belonged to the middle age group of 36-55 years (48.75%) followed old age (37%).  Most of the farmers were practicing agriculture in Semi Medium (28%) followed by medium land holdings (24%) among the SHC beneficiaries and small (35%) and Marginal land holdings (30%) among non-SHC beneficiaries. It was observed that medium level of knowledge was obtained (48%) by SHC beneficiaries followed by high level (20%) whereas 60% of non-beneficiary was having low level of knowledge on SHC. On an average majority of the SHC beneficiary were lying in the medium adoption level (43%) followed by high adoption category (21%). Reason behind the partial adoption and no adoption might be due to their unawareness on the benefits of optimum fertilizer application. Comparative analysis between adopted beneficiaries and SHC non-beneficiaries on crop productivity in paddy, Greengram Blackgram and groundnut indicated 11.66%, 16.12%, 8.67 and 15.10% increase in productivity over non-beneficiaries.


Author(s):  
Lohita Rabha ◽  
Utpal Barman

The study was conducted during 2017-18 to examine the changes observed in cultivation practices of Sali rice after receiving Soil Health Card (SHC) and for identifying the problems faced by respondents in utilising the SHC recommendations in Darrang district, Assam. A sample of 150 respondents was selected randomly by proportional allocation to size. The result showed that 74.66 per cent of the respondent did not apply the fertilizers as per SHC recommendation. For examining average change in terms of fertilizer application pattern, area and productivity of Sali rice intended for before and after getting SHC, no significant changes have been observed using student’s t-test at 5% level of significance. Increased in area under Sali rice was not significantly higher than before SHC was distributed. The distribution of SHC didn’t bring any changes in cultivation practices of sali rice during 2017-18 at Darrang district.Thus; the study has suggested providing extension support to farmers. Credit linkage through Kisan Credit Card will be helpful in increasing the production of rice and then market linkage may be established. For getting the better result it is necessary to link all the schemes with each other instead of implementing each scheme independently.


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