scholarly journals Yield trends and nutrient budgeting under a long-term (28 years) nutrient management in rice-wheat cropping system under subtropical climatic condition

2014 ◽  
Vol 60 (No. 8) ◽  
pp. 351-357 ◽  
Author(s):  
A. Das ◽  
Sharma RP ◽  
N. Chattopadhyaya ◽  
R. Rakshit
Keyword(s):  
Management Practices ◽  
Nutrient Management ◽  
Crop Yields ◽  
Nutrient Balance ◽  
Cropping System ◽  
Correlation Study ◽  
P Fertilizer ◽  
Long Term Experiment ◽  
Yield Trends

We measured the long-term (28 years) sustainability of rice-wheat cropping system under integrated nutrient management practices emphasizing the trends in grain yields, sustainable yield index (SYI) and nutrient budgeting. The data of long-term experiment revealed that grain yield of both rice and wheat declined under control and sub-optimal fertilizer inputs (50% or 75% recommended fertilizer NPK). Negative yield trend (slope) was observed in control plots for rice (–0.0296) and wheat (–0.0070); whereas positive yield trend was observed under treatments receiving organic supplements. The SYI values indicate that rice yields are more sustainable than wheat. Data on apparent nutrient balance showed a deficit of N (–42.2 kg/ha/year), P (–9.1 kg/ha/year) and K (–52.2 kg/ha/year) under control plots. Surprisingly, there was net depletion of K under the organic supplemented plots. Correlation study revealed that apparent balance of K was negatively correlated with SYI (r = –0.921 for rice; r = –0.914 for wheat) and yield slope (r = –0.870 for rice; r = –0.896 for wheat). If the trend of K imbalance is not reversed, the potential to improve N and P fertilizer use efficiency and crop yields will be limited.

Effect of long-term nutrient management practices on soil health and paddy yield of rice-rice-fallow cropping system in tropic humid climate

2021 ◽  
Vol 107 ◽  
pp. 103362
Author(s):  
Umme Aminun Naher ◽  
Md Mozammel Haque ◽  
Faruk Hossain Khan ◽  
Md Imran Ullah Sarkar ◽  
Tahmid Hossain Ansari ◽  
...  
Keyword(s):  
Management Practices ◽  
Nutrient Management ◽  
Soil Health ◽  
Cropping System ◽  
Humid Climate ◽  
Paddy Yield

scholarly journals Maximizing Yields, Nutrient Uptake and Balance for Mustard-Mungbean-T. Aman Rice Cropping Systems through Nutrient Management Practices in Calcareous Soils

2017 ◽  
Vol 9 (9) ◽  
pp. 210 ◽  
Author(s):  
M. A. Quddus ◽  
M. J. Abedin Mian ◽  
H. M. Naser ◽  
M. A. Hossain ◽  
S. Sultana
Keyword(s):  
Nutrient Uptake ◽  
Management Practices ◽  
Nutrient Management ◽  
Crop Yields ◽  
Cropping Systems ◽  
Block Design ◽  
Calcareous Soils ◽  
Cropping System ◽  
Soil Test ◽  
Positive Balance

The experiment was conducted to measure crop yields, nutrient concentration, nutrient uptake and balance by using different nutrient management practices for mustard-mungbean-T. aman rice cropping system in calcareous soil of Madaripur, Bangladesh. Different nutrient management practices were absolute nutrient control (T1); farmer’s practice (T2); AEZ based nutrient application (T3) and soil test based nutrient application (T4). The practices were compared in a randomized completely block design with three replications over two consecutive years. The average yield through application of soil test based nutrient (T4) was showed effective to get highest yields of mustard (1530 kg ha-1), mungbean (1632 kg ha-1) and T. aman rice (4729 kg ha-1). The same practices (T4) exhibited the greatest nutrients uptake by the test crops. The apparent balance of N and K was negative; however it was less negative and less deficiency detect in T4 treatment. Positive balance of P observed in all practices except in T1. There was a positive S balance (7.60 kg ha-1) in T4 but negative in T1, T2 and T3. Zinc balance was found positive in T3 and T4 and negative in T1 and T2. Boron balance in the system was neutral or slightly positive in T1 and negative in T2 but positive in T3 and T4. Organic matter, N, P, S, Zn and B status in soil was improved by T4 treatment. The results suggested that the soil test based nutrient application is viable and sustainable for mustard-mungbean-T. aman rice cropping system in calcareous soils of Bangladesh.

Soil and plant nutritional status in fruit orchards in Syria

2008 ◽  
Vol 56 (3) ◽  
pp. 363-370 ◽  
Author(s):  
M. El-Fouly ◽  
M. Shaaban ◽  
T. El-Khadraa
Keyword(s):  
Management Practices ◽  
Nutrient Management ◽  
Nutrient Balance ◽  
Soil Samples ◽  
Soil Conditions ◽  
Plant Tissues ◽  
Fertilizer Use ◽  
Ph Values ◽  
Fruit Orchards

A study was conducted over 15 years in apple, peach, pear, citrus, grapevine and olive orchards in different locations in Syria. The study aimed at monitoring and evaluating the long-term nutrient behaviour in plants and soil in order to suggest measures for nutrient management improvement. Leaf and soil samples were collected in the years 1982, 1987, 1990 and 1997. The soils were characterized by high pH values, high CaCO 3 and low to medium organic matter contents. Due to the unfavourable soil conditions and ill-chosen fertilizer use, the nutrient balance in the plant tissues was disturbed. To correct the situation, the application of improved nutrient management practices was suggested.

Long-term yield variability and detection of site-specific climate-smart nutrient management practices for rice–wheat systems: an empirical approach

2014 ◽  
Vol 152 (4) ◽  
pp. 575-601 ◽  
Author(s):  
N. SUBASH ◽  
B. GANGWAR ◽  
S. SINGH ◽  
A. K. KOSHAL ◽  
V. KUMAR
Keyword(s):  
Management Practices ◽  
Nutrient Management ◽  
Cropping System ◽  
Inorganic Fertilizer ◽  
Recommended Dose ◽  
Maximum Temperature ◽  
Climate Change Scenarios ◽  
Integrated Nutrient Management ◽  
Increasing Trend

SUMMARYIdentification of climate-smart nutrient management practices will overcome the ill effects of extreme climate variability on agricultural production under projected climate change scenarios. The rice–wheat cropping system is the major system used in India: using long-term yield data from Integrated Nutrient Management experiments on this system, the present study analysed trends in weather parameters and grain yield under different nutrient management practices. Twelve treatments with different combinations of inorganic (chemical fertilizer) and organic (farmyard manure (FYM), green manure (GM) and crop residue) sources of nutrients were compared with farmers’ conventional practices. A significant increasing trend was noticed for rainfall during the rice season at Kalyani and Navsari, of the order of 137·7 and 154·2 mm/decade, respectively. The highest increase in maximum temperature was seen at Palampur (1·62 °C/decade) followed by Ludhiana (1·14 °C/decade). At all the sites except Ludhiana and Kanpur, the yield of the rice–wheat system showed an increasing trend ranging from 0·08 t/ha/year in Jabalpur to 0·011 t/ha/year in Navsari, under the recommended dose of inorganic fertilizer application. A significant decreasing trend of 0·055 t/ha was found in Ludhiana. For most of the sites, a combination of half the recommended dose of inorganic fertilizer and either FYM or GM to provide the remainder of the N required was sufficient to maintain productivity. The top three climate-resilient integrated nutrient management practices were identified for all the study sites. Thus, the present study highlights the adaptive capacity of different integrated nutrient management practices to rainfall and temperature extremes under rice–wheat cropping system in distinctive agro-ecological zones of India.

Integrated nutrient management (INM) on yield trends and sustainability, nutrient balance and soil fertility in a long-term (30 years) rice-wheat system in the Indo-Gangetic plains of India

2018 ◽  
Vol 41 (18) ◽  
pp. 2365-2375 ◽  
Author(s):  
Sushanta Saha ◽  
Bholanath Saha ◽  
Manabendra Ray ◽  
Swapan Kumar Mukhopadhyay ◽  
Pallabendu Halder ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Nutrient Management ◽  
Nutrient Balance ◽  
Integrated Nutrient Management ◽  
Gangetic Plains ◽  
Yield Trends

Phosphorus efficiency in a long-term wheat–rice cropping system in China

2010 ◽  
Vol 149 (3) ◽  
pp. 297-304 ◽  
Author(s):  
X. TANG ◽  
X. SHI ◽  
Y. MA ◽  
X. HAO
Keyword(s):  
Crop Yields ◽  
Cropping System ◽  
Utilization Efficiency ◽  
Phosphorus Efficiency ◽  
Phosphorus Fertilization ◽  
Soil P ◽  
P Fertilizer ◽  
P Application ◽  
The Mean

SUMMARYLong-term (over 14 years) experiments on winter wheat (Triticum aestivum L.)–rice (Oryza sativa L.) crop rotations were conducted in Southwest China to investigate phosphorus (P) fertilizer utilization efficiency, including the partial factor productivity (PFP), agronomic efficiency (AE), internal efficiency (IE), partial P balance (PPB), recovery efficiency (RE) and the mass (input–output) balance. The seven treatments were Control, N, NP, NK, NPK, NPKM and NPKSt, representing various combinations of inorganic fertilizers (N, P and K), manure (M) and the application of rice straw (St). Without P application, the soil could supply c. 14·7–22·5 kg P/ha annually and produce, on average, c. 1·8 t/ha wheat and 6·0 t/ha rice. Phosphorus fertilization increased crop yields by 65·5 and 11·4% for wheat and rice, respectively, over the 14 years. The PFP values ranged from 80·2 to 177 kg grain/kg P fertilizer for wheat and from 222 to 255 kg/kg for rice in the NPK treatments. However, the mean AE over the 14-year period was 31·9 and 21·3 kg grain/kg inorganic P fertilizer for wheat and rice, respectively. The mean IE was 214 and 318 kg grain/kg P uptake for wheat and rice, respectively, during the cultivation period. The PPB for the whole rotation system over the 14 years ranged from 0·58 to 0·64. However, the mean RE of P fertilizer was 0·26 (varying from 0·22 to 0·29) in the wheat–rice cropping system over the 14-year period. For every 100 kg surplus P/ha per year, the concentration of soil P extracted by 0·5 m NaHCO3 at pH 8·5 (Olsen-P) would increase by, on average, 4·12 mg/kg in soil. For the wheat–rice cropping system, the current P application rate of 55–65 kg P/ha per year is able to sustain annual yields of about 3 t/ha for wheat and 7 t/ha for rice. This study suggests that, in order to achieve higher crop yields, the P fertilizer utilization efficiency should be considered when making P fertilizer recommendations in wheat–rice cropping systems.

EFFECT OF LONG-TERM USE OF TILLAGE, RESIDUES AND N LEVELS IN SORGHUM (SORGHUM VULGARE (L)) – CASTOR (RICINUS COMMUNIS) CROPPING SYSTEM UNDER RAINFED CONDITIONS – CROP RESPONSES AND ECONOMIC PERFORMANCE – PART I

2013 ◽  
Vol 49 (3) ◽  
pp. 395-415 ◽  
Author(s):  
J. KUSUMA GRACE ◽  
K. L. SHARMA ◽  
D. SUMACHANDRIKA ◽  
K. SRINIVAS ◽  
U. K. MANDAL ◽  
...  
Keyword(s):  
Management Practices ◽  
Crop Yields ◽  
Ricinus Communis ◽  
Cropping System ◽  
Soil Management ◽  
Conventional Tillage ◽  
Water Infiltration ◽  
Fertilizer N ◽  
Long Term Effect

SUMMARYThis experiment was conducted to study the long-term effect of soil management treatments on crop yields, sustainability yield indices (SYI) and soil fertility in rainfed semi-arid tropical Alfisol at Hayathnagar Research Farm, Hyderabad, India, during the period 1995 to 2009. The experiment was conducted in a split–split plot design with conventional tillage (CT) and minimum tillage (MT) as main factors, surface application of sorghum stover @ 2 t ha−1 (SS), fresh Gliricidia loppings @ 2 t ha−1 (GL) and ‘no’ residue (NR) as sub-factors and levels of N viz. 0 (N0), 30 (N30), 60 (N60) and 90 (N90) kg N ha−1 as sub–sub factors in a castor–sorghum two-year rotation. On an average, CT maintained 30.4 and 57.0% higher grain yields of sorghum and castor, respectively, over MT. Between two residues, GL performed well in both the crops. The highest yields of sorghum (1425 kg ha−1) and castor (876 kg ha−1) were recorded at 90 kg N ha−1. CT maintained higher SYI of 0.44 compared to MT (0.38) and higher agronomic efficiency (AE) of 13.5 and 6.76 kg grain kg−1 N for sorghum and castor crop, respectively. Use of crop residue as mulch had an advantage in increasing the yield of both the crops with increase in rainfall under CT even without N application (control), probably by making the soil more receptive to water infiltration, better moisture storage and by reducing the evaporative losses. Using response functions, the optimum fertilizer N requirement was also computed for a given set of tillage and residue combinations. The revised optimum fertilizer N doses for sorghum and castor varied from 45 to 56 kg ha−1 and 46 to 74 kg ha−1, respectively, under different tillage and residue combinations and could be recommended depending upon the soil management practices.

scholarly journals Long-term Effect of Integrated Nutrient Management Practices on Growth, Yield and Nutrient Uptake of Finger Millet (Eleusine coracana G.) in Alfisols under Different Cropping Systems

2021 ◽  
pp. 46-53
Author(s):  
. Shilpa ◽  
B. G. Vasanthi ◽  
Hari Mohan Meena
Keyword(s):  
Nutrient Uptake ◽  
Finger Millet ◽  
Management Practices ◽  
Nutrient Management ◽  
Block Design ◽  
Nutrient Balance ◽  
Growth Yield ◽  
Optimum Level ◽  
Integrated Nutrient Management

A field experiment was conducted to study the effect of long-term integrated nutrient management (INM) on growth, yield and nutrient uptake of rainfed finger millet during kharif 2019 at field unit of All India Co-ordinated Research Project for Dryland Agriculture at University of Agricultural Sciences, Bangalore, India. The experimental plot in the field was laid out in a randomized complete block design (RCBD) with 10 treatments and four replications. Growth parameters such as plant height (112.44 cm), number of productive tillers per hill (4.75), number of ear heads per hill (4.49), number of fingers per ear head (7.25), total dry matter production per hill (77.39 g) and yield parameters like grain yield (28.27 q ha-1) and straw yield (32.63 q ha-1) were found to be higher with application of FYM @10 t ha-1 + 100% RDF under finger millet- groundnut rotation (T9). Similarly, T9 also recorded higher uptake of nitrogen (37.03 and 26.40 kg ha-1), phosphorus (6.78 and 4.57 kg ha-1) and potassium (30.17 and 48.68 kg ha-1) in grain and straw of finger millet, respectively. It implies that INM over long period of time tend to supply the plants with sufficient amount of essential nutrient elements while creating favourable physico-chemical properties of soil for healthy environment. It also safeguards soil nutrient balance in long term to an optimum level for sustaining the desired crop productivity.

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