scholarly journals COMBINED APPLICATION OF VARIOUS SOURCES OF ORGANIC FERTILIZERS WITH BIOFERTILIZERS FOR IMPROVEMENT POTATO PRODUCTIVITY AND SOIL FERTILITY STATUS

2021 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
reham mahmoud ◽  
basma rashwan
2018 ◽  
Vol 10 (1) ◽  
pp. 185-189
Author(s):  
Ashwini Ambadi ◽  
D. Krishnamurty ◽  
Sathyanaran Rao ◽  
B. K. Desai ◽  
M.V. Ravi ◽  
...  

A field experiment was conducted on vertisols (pH of 7.56 with organic carbon content of 0.55%) at Re- search Institute on Organic Farming, University of Agricultural Sciences, Raichur coming under northern Karnataka during rabi season of 2015-16 to study the Influence of varied crop residues and green biomass composts to rabi sorghum growing soils on uptake of major nutrients, organic carbon and soil fertility status. In general application of Cotton stalks, Redgram stalks, Glyricidia, combination of cotton and redgram stalks composts, FYM and combina- tion of organic and inorganic fertilizers helped to buildup soil nutrients with respect to organic carbon, available nitro- gen and phosphorus. Significantly higher nitrogen (227.3 kg ha-1), phosphorous (75.7 kg ha-1) and potassium (141.7 kg ha-1) uptake by rabi sorghum was recorded with combined application of recommended FYM (3 t ha-1) and NP fertilizers (50:25 kg N, P2O5 ha-1) (T14) followed by Cotton stalks +Redgram stalks + Glyricidia sp. with C:N ratio of 30:1 compost @ 50 kg N equivalent (T12: 222.0, 74.0 and 132.3 kg ha-1). The least uptake was recorded with abso- lute control (T15: 127.0, 42.0 and 71.7 kg ha-1). Similar trend was observed with organic carbon, available nitrogen and phosphorus. Combined application of recommended FYM (3 t ha-1) and NP fertilizers (50:25 kg N, P2O5 ha-1) followed by Cotton stalks +Redgram stalks + Glyricidia sp. with C:N ratio of 30:1 compost @ 50 kg N equivalent at the time of sowing recorded higher major nutrients uptake, microbial biomass and soil fertility status.


1984 ◽  
Vol 102 (1) ◽  
pp. 215-218 ◽  
Author(s):  
K. N. Sharma ◽  
Bijay Singh ◽  
D. S. Rana ◽  
M. L. Kapur ◽  
J. S. Sodhi

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.


2005 ◽  
Vol 25 (4) ◽  
pp. 69-92 ◽  
Author(s):  
J. O. Fening ◽  
T. Adjei-Gyapong ◽  
E. Yeboah ◽  
E. O. Ampontuah ◽  
G. Quansah ◽  
...  

2015 ◽  
Vol 9 (32) ◽  
pp. 863-866
Author(s):  
Deivasigamani S ◽  
K Thanunathan ◽  
M Kathiresan R ◽  
Sudhakar M ◽  
Bharathi Karthikeyan B

2017 ◽  
Vol 12 (18) ◽  
pp. 1538-1546 ◽  
Author(s):  
Watanabe Yoshinori ◽  
Itanna Fisseha ◽  
Fujioka Yuichiro ◽  
Ruben Shou ◽  
Iijima Morio

2021 ◽  
Vol 12 (5) ◽  
pp. 348-360
Author(s):  
Rajendra Hegde ◽  
◽  
Mahendra Kumar ◽  
M. B. Niranjana K. V. ◽  
Seema, K. V. ◽  
...  

An investigation was under taken to study the soil fertility status of major nutrients, micronutrients and mapping in Ramasamudram-1 microwatershed of Yadgir taluk and district of Karnataka, India during the year 2019. Total seventy-four grid wise surface soil samples were collected at 320 m grid interval at 0-15 cm depth to assess the soil parameters (texture, pH, EC, OC, available P, K, S, Zn, Cu, Fe, Mn and B) and prepare the soil fertility maps through GIS using Kriging method. The results of the study indicated that, the texture of the soil varied from loamy sand to sand clay loam in surface. Soil reaction varied from acidic to neutral with non-saline in nature. The distribution of soil organic carbon (32%), available phosphorous (56%) and potassium (47%) status was found to be medium in most of the area of microwatershed. The available sulphur status was found to be low (57%) in maximum area of the microwatershed. The available zinc status was found to be sufficient (46%) in majority area of the microwatershed. The available copper, iron and manganese status of the soils were sufficient (58%) in entire area. Whereas available boron status was found to be low (57%) in maximum area of the microwatershed. Therefore, the study showed that, the soils of the microwatershed were medium in fertility status. There is need of proper fertilizer recommendation and soil management practices can be made productive thereby, increasing the crop yield.


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