scholarly journals Impact of Soil Test Based Fertilizer Application on Yield, Soil Health and Economics in Rice

2021 ◽  
Vol 57 (4) ◽  
pp. 147-149
Author(s):  
M. Jayalakshmi ◽  
G. Prasadbabu ◽  
B. H. Chaithanya ◽  
R. Bindhupraveenaand ◽  
T. Srinivas
Keyword(s):  
Organic Carbon ◽  
Carbon Content ◽  
Farmyard Manure ◽  
Soil Health ◽  
Fertilizer Application ◽  
Soil Test ◽  
Organic Carbon Content ◽  
Yield Increase ◽  
Net Returns ◽  
Phosphorus And Potassium

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.

Studies on Changes of Soil Carbon and Nitrogen Dynamics under Long-Term Fertilizer in the Black Soil Based on DSSAT Model

2014 ◽  
Vol 1073-1076 ◽  
pp. 1743-1750
Author(s):  
Wei Guo ◽  
Zhong Qing Zhang ◽  
Jin Hua Liu ◽  
Ping Zhu ◽  
Jing Min Yang
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Content ◽  
Nitrogen Content ◽  
Total Nitrogen ◽  
Farmyard Manure ◽  
Organic Manure ◽  
Organic Carbon Content ◽  
Npk Fertilizer

Long-term experiment of Gongzhuling base for the study through three treatments(1)NPK: NPK fertilizer; (2)N165M: Manure and NPK fertilizer; (3)1.5M+NPK: 1.5Manure and NPK fertilizer, used DSSAT-Century soil model to study the long-term effects of different fertilizer treatments on soil organic carbon, total nitrogen content and the laws of growth and decline. The results show that: long-term application of nitrogen fertilizer can significantly improve crop yields compare with NPK.. Corn production is also affected by climatic conditions, especially in drought years with less precipitation. Larger impact of organic manure on soil organic carbon (SOC)and total nitrogen, SOC content obtained in descending order of 1.5M + N165> N165> N0 by Century model simulation. Soil organic carbon content and nitrogen content has a certain relevance, and the trend is consistent. Organic manure and inorganic fertilizer can significantly reduce soil inorganic nitrogen content and reduce the risk of nitrogen leaching. Through model simulations C / N ratio could be explained: C / N increases indicated an increase of organic carbon faster than organic nitrogen in soil, and changes of soil chronic library SOM2 determined organic carbon content. Therefore we should pay attention to organic manure carbon return level, vigorously promote the use of farmyard manure to improve soil nutrient content.

scholarly journals The Content of Topsoil Nutrients, Ph and Organic Carbon as Affected by Long-Term Application of Mineral and Organic Fertilisers

2014 ◽  
Vol 60 (4) ◽  
pp. 142-148
Author(s):  
Lukáš Hlisnikovský ◽  
Eva Kunzová
Keyword(s):  
Organic Carbon ◽  
Carbon Content ◽  
Field Experiments ◽  
Ph Value ◽  
Farmyard Manure ◽  
Organic Carbon Content ◽  
Cattle Slurry ◽  
Organic Fertilisers ◽  
High Yields

Abstract Soil is the fundamental element in agriculture and is affected in a variety of ways. Besides other things, the long-term application of mineral and organic fertilisers can significantly influence the topsoil pool of nutrients, organic carbon content and pH. Within the scope of longterm field experiments in Praha-Ruzyně, we evaluated the effect of six fertiliser treatments - unfertilised Control, farmyard manure (FYM), cattle slurry (CAT), cattle slurry amended with straw from previous cereals (CAT+STR), mineral fertiliser (NPK) and NPK amended with FYM (NPK+FYM) on a topsoil pool of nutrient content, organic carbon content (Cox) and pH between the years 2001 and 2012. In the selected period, the fertiliser treatment did not influence the N and Cox content (ranging from 0.126% to 0.143%). Phosphorus and potassium were significantly higher in the NPK+FYM treatment (109.82 and 279.27 mg/kg, respectively), while calcium and magnesium were significantly lower in the NPK treatment (2,973 and 134.95 mg/kg, respectively). Application of mineral fertilisers significantly decreased the value of pH, influencing the Ca and Mg topsoil concentrations. Organic fertilisers cannot provide a sustainable amount of nutrients to generate high yields in a short time, but release their nutrients slowly and the range of nutrients is wider. Mineral fertilisers, if not amended with organic fertilisers, can provide huge doses of nutrients, which can be quickly reused for high yields, but negatively influence the pH value, resulting in a decrease in the pool of Ca and Mg.

Changes in soil fertility status as influenced by continuous cropping and fertilizer application

1984 ◽  
Vol 102 (1) ◽  
pp. 215-218 ◽  
Author(s):  
K. N. Sharma ◽  
Bijay Singh ◽  
D. S. Rana ◽  
M. L. Kapur ◽  
J. S. Sodhi
Keyword(s):  
Organic Carbon ◽  
Soil Fertility ◽  
Farmyard Manure ◽  
Fertilizer Application ◽  
Available P ◽  
Organic Carbon Content ◽  
Continuous Cropping ◽  
Fertility Status ◽  
Combined Application ◽  
Soil Fertility Status

SummaryChanges in soil fertility status brought about by the application of P and K fertilizers and farmyard manure (FYM) to a fixed wheat-maize rotation for 10 years in a calcic ustochrept are reported. The treatments comprised three rates of P (0, 30 and 60 kg P2O5/ha), two rates of K (0 and 30 kg K2O/ha) and two rates of FYM (0 and 15 t/ha) applied to maize or wheat alone or to both the crops. Organic carbon and available P and K contents of the soil increased significantly with the addition of FYM. P application at 60 kg P2O5/ha nearly maintained the original level of available P even after 10 years of continuous cropping. However, a considerable and highly significant increase in available P was obtained with the combined application of P and FYM. Available K status of the soil remained more or less unaffected by K application. Organic carbon content, and available P and K contents were significantly higher in the plots that received fertilizers and manure for both the crops than in those where the application was to maize or wheat alone.

EFFECTS OF FARMYARD MANURE, FERTILIZERS AND GREEN MANURING IN RICE-WHEAT SYSTEMS IN BHUTAN: RESULTS FROM A LONG-TERM EXPERIMENT

2003 ◽  
Vol 39 (2) ◽  
pp. 129-144 ◽  
Author(s):  
G. B. CHETTRI ◽  
M. GHIMIRAY ◽  
C. N. FLOYD
Keyword(s):  
Farmyard Manure ◽  
Wheat Yield ◽  
Rice Paddy ◽  
Fertilizer Application ◽  
Potassium Fertilizer ◽  
Green Manuring ◽  
Yield Increase ◽  
Long Term Experiment ◽  
Phosphorus And Potassium ◽  
Phosphorus Application

An experiment conducted from 1988 to 1997 to determine the effects of the timing of application and nutrient supply (particularly of phosphorus) is reported. The sources of applied nutrients that were compared were farmyard manure, pre-rice green-manuring with Sesbania aculeata and fertilizer application in a rice-wheat rotation on a typic ustifluvent. The application of seven tonnes farmyard manure per hectare to both the rice and the wheat crops over eight years increased organic carbon levels from 1.4 to 1.6% but had no yield effect on either crop. Phosphorus application through farmyard manure was not adequate for rice, whilst an application of 34 kg P ha−1 to the rotation gave an economic yield increase only in rice and then only in the first four years of the experiment. From the third year, green manuring was able to replace the effects of the recommended nitrogen, phosphorus and potassium fertilizer applications in increasing rice yield. Green manuring had no effect on the wheat yield but the recommended fertilizer application increased yield. Green manuring increased soil total nitrogen and available potassium levels and reduced base saturation. After adjusting rice yields for variation in transplanting date between years there was no statistical evidence of a yield trend in either crop over the period of the experiment. Farmers' practice of applying seven tonnes farmyard manure per hectare appears adequate to produce stable rice paddy yields of 4–6 t ha−1 a−1.

Conserving the Organic Matter Content of the Soil to Sustain Sugarcane Yield

1992 ◽  
Vol 28 (1) ◽  
pp. 57-62 ◽  
Author(s):  
R. L. Yadav ◽  
S. R. Prasad
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Content ◽  
Field Experiments ◽  
Farmyard Manure ◽  
Organic Matter Content ◽  
Matter Content ◽  
Cane Yield ◽  
Organic Carbon Content ◽  
Combined Application

SummaryIn two field experiments conducted over five successive sugarcane crops (including four ratoon crops), yield decline was associated with a decrease in the organic carbon content of the soil. Reduction in cane yield was minimized by the combined application of farmyard manure and urea, which resulted in an increase in soil organic carbon of 0.023% over the initial status within five years. Incorporation of farm waste materials such as cane trash, rice straw and legume husk into the soil before cane planting also increased the soil organic carbon content. Maximum benefits, however, were produced by the incorporation of legume husk with 150 kg N ha−1. A judicious mixture of chemical fertilizer and organic manures is therefore suggested as a means of sustaining the productivity of sugarcane.

scholarly journals Fractions of humus compounds in soil fertilised with sewage sludge and vermicomposts

2004 ◽  
Vol 52 (1) ◽  
pp. 121-126
Author(s):  
Barbara Filipek-Mazur ◽  
Krzysztof Gondek ◽  
Pavel Ryant
Keyword(s):  
Sewage Sludge ◽  
Organic Carbon ◽  
Field Experiment ◽  
Carbon Content ◽  
Total Nitrogen ◽  
Farmyard Manure ◽  
Organic Carbon Content ◽  
Tannery Sludge ◽  
Soil Humus ◽  
Organic Fertilisation

Four-year investigations conducted as a field experiment aimed to determine the effect of organic fertilisation with farmyard manure, tannery sludge and vermicompost obtained from it on soil humus compounds composition. Equal to farmyard manure effect of vermicompost on organic carbon and total nitrogen was determined in the discussed experiment. Organic carbon content diminished as a result of mineral treatment and fertilisation with untreated sludge. The number of most mobile humus fractions decreased in result of applied fertilisation where as the share of humus compounds not undergoing hydrolysis increased.

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