scholarly journals Geo-statistical mapping of some soil fertility constraints in sorghum- based cropping system of Sudano-Sahelian zone of Nigeria

2019 ◽  
Vol 6 (6) ◽  
pp. 146-152
Author(s):  
Ali Muhammad Amin ◽  
Mahmud Sani ◽  
Umar Bello Ahmad ◽  
Sani Sufiyanu ◽  
Hayatu Bashir Shehu ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Cropping System ◽  
Statistical Mapping ◽  
Sahelian Zone

APPLICATION OF THE INTENSIVE CROP GROWING TECHNOLOGIES IN CROP ROTATION IS THE STABILITY CONDITION OF THE HUMUS CONTENT OF SOIL

1970 ◽  
pp. 52-56
Author(s):  
V. А. Shchedrin
Keyword(s):  
Soil Fertility ◽  
Crop Rotation ◽  
Humus Content ◽  
Arable Land ◽  
Weighted Average ◽  
Cropping System ◽  
Investment Project ◽  
Crop Rotations ◽  
High Productivity ◽  
Labile Phosphorus

In OOO “Dubovitskoe” which was organized in 2006 as investment project of the AO “Shchelkovo Agrokhim” for 2010 – 2012 three advanced crop rotations have been developed. Before their introduction the grain crops fraction in the cropping system was 62%, then it fell to 49%. At the same time the portion of raw crops increased from 15 to 20%, legumes from 6 to 8%, others (buckwheat, grain maize, etc.) - up to 23%. As of 2017, the crops of leguminous crops have increased noteworthily. There are two predominant soil types here heavy clay loam podzolized chernozem (6615 ha) and grey forest soil (856 ha). Weighted average indicators (as of 2017): humus content in the soils of arable land is 5, 34%; acidity pH is 4.92; labile phosphorus - 111.8 mg / kg soil; exchange potassium - 144 mg / kg soil. The coefficient of the soil fertility in the enterprise (weighted average) is 0.66. This means that maintaining and increasing the soil fertility for arable land of the enterprise is critical task. As a result of the research, it has been established that the technologies introduced in the crop vegetation management (CVS) in the crop rotation conditions ensure high productivity of cultivated crops and stability of humus content in soils as an energy basis and a guarantor of increasing fertility. The indicators of the labile phosphorus Р205 and exchange potassium К20 in the soils depending on the crop rotation vary from a certain decrease to expressed steady growth. Therefore it is necessary to specify seeding rates based on actual data. Sustainable soil acidification in the crop rotations under crop cultivation in OOO “Dubovitskoe” it is the result of the acid feterlizers high rates application, during studying period did not carried out required agromelioration with calcium contenting elements.

EFFECT OF WHEAT, LEGUME AND LEGUME-ENRICHED WHEAT RESIDUES ON THE PRODUCTIVITY AND NITROGEN UPTAKE OF RICE-WHEAT CROPPING SYSTEM AND SOIL FERTILITY

2001 ◽  
Vol 49 (4) ◽  
pp. 369-378 ◽  
Author(s):  
S. N. SHARMA ◽  
R. PRASAD
Keyword(s):  
Adverse Effect ◽  
Soil Fertility ◽  
Nitrogen Uptake ◽  
Green Manure ◽  
N Uptake ◽  
Cropping System ◽  
Available P ◽  
Fertilizer N ◽  
Organic C ◽  
Green Manuring

Field experiments were conducted for two crop years at the Indian Agricultural Research Institute, New Delhi to study the effect of enriching wheat residue with legume residue on the productivity and nitrogen uptake of a rice-wheat cropping system and soil fertility. The incorporation of wheat residue had an adverse effect on the productivity of the rice-wheat cropping system. When it was incorporated along with Sesbania green manure, not only did its adverse effect disappear but the response to fertilizer N was also increased. There was no response to fertilizer N when Sesbania green manure was incorporated. When wheat residue was incorporated along with Sesbania green manuring, rice responded significantly to fertilizer N up to 120 kg N ha-1 in the first year and to 60 kgN ha-1 in the second year and at these levels of N, Sesbania + wheat residue gave 0.8 to 1.2 t ha-1 more grain, 0.6-1.0 t ha-1 more straw and 8-15 kg ha-1 more N uptake of rice resulting in 0.04-0.17% more organic C, 3-8 kg ha-1 more available P and 17-25 kg ha-1 more available K content in the soil than wheat residue alone at the same rates of N application. The respective increaseas caused by Sesbania green manure + wheat residue over Sesbania green manure alone were 0.3-0.5 t ha-1 in the grain and straw yield, 1-9 kg ha-1 in the N uptake of rice, 0.02-0.10% in organic C, 1-8 kg ha-1 in available P and 35- 70 kg ha-1 in available K content in the soil. These treatments also gave higher residual effects in succeeding wheat than wheat residue alone. The incorporation of residues of both wheat and Sesbania is thus recommended to eliminate the adverse effect of wheat residue and to increase the beneficial effects of Sesbania green manuring.

Double Cropping of Rice in Triple Cropping System and Soil Fertility

1981 ◽  
pp. 765-768
Author(s):  
Yang Wen-yuan ◽  
Liang Dun-fu ◽  
Xie Chun-qing ◽  
Wan Zong-yi
Keyword(s):  
Soil Fertility ◽  
Cropping System ◽  
Double Cropping

Soil greenhouse gas fluxes from maize cropping system under different soil fertility management technologies in Kenya

2020 ◽  
Vol 301 ◽  
pp. 107064
Author(s):  
Collins M. Musafiri ◽  
Joseph M. Macharia ◽  
Milka N. Kiboi ◽  
Onesmus K. Ng'etich ◽  
Chris A. Shisanya ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Greenhouse Gas ◽  
Cropping System ◽  
Soil Fertility Management ◽  
Fertility Management ◽  
Gas Fluxes ◽  
Greenhouse Gas Fluxes

scholarly journals Impact of land management system on crop yields and soil fertility in Cameroon

Solid Earth ◽  
2015 ◽  
Vol 6 (3) ◽  
pp. 1087-1101 ◽  
Author(s):  
D. Tsozué ◽  
J. P. Nghonda ◽  
D. L. Mekem
Keyword(s):  
Soil Fertility ◽  
Crop Yields ◽  
Cropping Systems ◽  
Control Sample ◽  
Cropping System ◽  
Field Work ◽  
Exchange Capacity ◽  
Direct Seeding ◽  
Ph Values ◽  
The Impact

Abstract. The impact of direct-seeding mulch-based cropping systems (DMC), direct seeding (DS) and tillage seeding (TS) on Sorghum yields, soil fertility and the rehabilitation of degraded soils was evaluated in northern Cameroon. Field work consisted of visual examination, soil sampling, yield and rainfall data collection. Three fertilization rates (F1: 100 kg ha−1 NPK + 25 kg ha−1 of urea in DMC, F2: 200 kg ha−1 NPK + 50 kg ha−1 of urea in DMC and F3: 300 kg ha−1 NPK + 100 kg ha−1 of urea in DMC) were applied to each cropping system (DS, TS and DMC), resulting in nine experimental plots. Two types of chemical fertilizer were used (NPK 22.10.15 and urea) and applied each year from 2002 to 2012. Average Sorghum yields were 1239, 863 and 960 kg ha−1 in DMC, DS and TS, respectively, at F1, 1658, 1139 and 1192 kg ha−1 in DMC, DS and TS, respectively, at F2, and 2270, 2138 and 1780 kg ha−1 in DMC, DS and TS, respectively, at F3. pH values were 5.2–5.7 under DMC, 4.9–5.3 under DS and TS and 5.6 in the control sample. High values of cation exchange capacity were recorded in the control sample, TS system and F1 of DMC. Base saturation rates, total nitrogen and organic matter contents were higher in the control sample and DMC than in the other systems. All studied soils were permanently not suitable for Sorghum due to the high percentage of nodules. F1 and F2 of the DS were currently not suitable, while F1 and F3 of DMC, F3 of DS and F1, F2 and F3 of TS were marginally suitable for Sorghum due to low pH values.

Pastures in temperate rice rotations of south-eastern Australia

1994 ◽  
Vol 34 (7) ◽  
pp. 959 ◽  
Author(s):  
MAE Lattimore
Keyword(s):  
Soil Fertility ◽  
Weed Control ◽  
New South ◽  
New South Wales ◽  
Cropping System ◽  
Environmental Pressures ◽  
South Eastern ◽  
South Wales ◽  
Eastern Australia ◽  
South Eastern Australia

Legume-based pastures have long been an integral part of rice growing in the southern New South Wales irrigation areas and still offer potential to improve the productivity, profitability, and sustainability of the temperate rice-cropping system.This paper reviews both historical and current aspects of pastures in temperate rice rotations in southern New South Wales and highlights the importance of pastures in sustaining this cropping system as environmental pressures increase. Topics discussed include pasture species and rotations, their role in improving soil fertility and sustainability, the value of pastures in weed control, and their management for maximum profitability.

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