Long term effect of crop residue management on yield, economics and soil fertility status in soybean based cropping system

The low soil fertility status of South African marginal soils threatens sustainable production of biofuel feedstock in smallholder farmers. It is therefore imperative to development sustainable and optimal management practices that improve soil fertility. The objective of this study was to determine the effect of tillage, rotation and crop residue management on nutrient availability in a bioenergy sweet sorghum-based cropping system in marginal soils. Two tillage levels, no-till (NT) and conventional tillage (CT); two crop rotations, sweet sorghum–grazing vetch–sweet sorghum (SVS) and sweet sorghum–fallow–sweet sorghum (SFS); and three crop residue retention levels, 0%, 15% and 30%, were tested. No-till enhanced total nitrogen, total organic nitrogen (TON), magnesium (Mg) and sodium (Na) by 3.19% to 45% compared to CT. SVS rotation increased ammonium (NH4+-N) and nitrate (NO3−-N) by 3.42% to 5.98% compared to SFS. A 30% crop residue retention increased NH4+-N, NO3−-N, available phosphorus (Available P), cation exchange capacity (CEC), calcium (Ca), Mg and potassium (K) by 3.58% to 31.94% compared to crop residue removal. In the short term, a 30% crop residue retention was the main treatment that enhanced soil fertility. The application of NT−30% was a better practice to enhance soil fertility. However, research on inclusion of crop diversity/intercropping can add more value to the NT–30% practice in enhancing soil fertility.

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Long term effect of tillage system and crop residue management on soil carbon content of a luvisol under rainfed Mediterranean conditions

Agrociencia Uruguay ◽

10.31285/agro.16.667 ◽

2012 ◽

Vol 16 (3) ◽

Keyword(s):

Carbon Content ◽

Soil Carbon ◽

Crop Residue ◽

Term Effect ◽

Residue Management ◽

Soil Carbon Content ◽

Long Term Effect ◽

Tillage System ◽

Mediterranean Conditions

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Effect of crop residue management in a rice–wheat cropping system on growth and yield of crops and on soil fertility

Experimental Agriculture ◽

10.1017/s001447979935403x ◽

1999 ◽

Vol 35 (4) ◽

pp. 427-435 ◽

Cited By ~ 51

Author(s):

R. PRASAD ◽

B. GANGAIAH ◽

K. C. AIPE

Keyword(s):

Soil Fertility ◽

Crop Residue ◽

Field Experiments ◽

Indian Subcontinent ◽

Cropping System ◽

Residue Management ◽

Growth And Yield ◽

Available Phosphorus ◽

Crop Residue Management ◽

Residue Incorporation

Crop residue management is posing a serious problem in the rice (Oryza sativa)–wheat (Triticum aestivum) cropping system, which is widely practised in the Indian Subcontinent and China, and covers about 22.5 × 106 ha. The problem is serious because there is very little turn-around time between rice harvest and wheat sowing. Three practices, namely, residue removal, residue burning and residue incorporation were compared in two field experiments, one with the rice residues and the other with the wheat residues. Results obtained showed that both rice and wheat residues can be safely incorporated without any detrimental effects on the crops of rice or wheat grown immediately after incorporation. Incorporation of crop residue also improved soil fertility status as judged by organic carbon and available phosphorus and potassium contents. Residue incorporation should be preferred over residue burning, which results in the loss of valuable plant nutrients and is both an environmental and a health hazard.

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Long-Term Effect of Fertilizer and Crop Residue on Soil Fertility in the Moldavian Plateau

Cercetari Agronomice in Moldova ◽

10.2478/v10298-012-0012-y ◽

2012 ◽

Vol 45 (2) ◽

pp. 29-41 ◽

Cited By ~ 1

Author(s):

C. Ailincăi ◽

G. Jităreanu ◽

D. Bucur ◽

Despina Ailincăi

Keyword(s):

Organic Carbon ◽

Soil Fertility ◽

Crop Residue ◽

Term Effect ◽

Mineral Fertilizers ◽

Research Station ◽

Organic Carbon Content ◽

Mineral Fertilization ◽

Long Term Effect

Long-Term Effect of Fertilizer and Crop Residue on Soil Fertility in the Moldavian Plateau Since 1965, at the Agricultural Research Station of Podu-Iloaiei, Iaşi County, Romania (47°12' N latitude, 27°16' E longitude), investigations were conducted on the influence of different fertilizer systems on production and soil fertility. For wheat and maize crops, placed in a three-year rotation (pea - wheat - maize), three fertilization systems were experienced: (1) mineral fertilization with nitrogen and phosphorus rates until N140P100; (2) manure fertilization (20, 40, and 60 t/ha), with and without mineral fertilization and (3) mineral fertilizers + hashed residue applied in autumn under the base ploughing. The paper presented the results of investigations concerning the influence of long-term fertilization (46 years) on some chemical characteristics of Cambic Chernozem from the Moldavian Plateau. The climatic conditions in the Moldavian Plain were characterized by annual mean temperature of 9.6°C and a mean rainfall amount, on 50 years, of 553.5 mm, of which 141.5 mm during September-December and 412.0 mm during January-August. After 46 years of experiences, in pea-wheat-maize crop rotation, the content of organic carbon from soil has decreased by 22.3% (4.2 g/kg soil) at the unfertilized control and by 14.4% (2.7 g/kg soil) at the rate of N120P80. In wheat and maize, nitrogen uptake by weeds was between 7 and 9.5 kg/ha from all the plots. Applying moderate rates of mineral fertilizers (N80P60), together with 6 t/ha wheat straw or 40 t/ha manure, has determined the increase in organic carbon content from soil by 0.5 and, respectively, 2.8 g/kg.

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Effects of long term use of organic and inorganic fertilizers on soil fertility and productivity under paddy- sesame cropping system

Bangladesh Journal of Botany ◽

10.3329/bjb.v49i3.49988 ◽

2020 ◽

Vol 49 (3) ◽

pp. 585-591

Author(s):

Ashok Kumar Gaddi ◽

MA Basavanneppa ◽

Prabhuling Tevari

Keyword(s):

Soil Fertility ◽

Grain Yield ◽

Cropping System ◽

Soil Test ◽

Inorganic Fertilizers ◽

Fertility Status ◽

Soil Fertility Status ◽

Organic And Inorganic Fertilizers ◽

Equivalent Yield

A field study was conducted to analyze the effect of long term use of organic and inorganic fertilizers on productivity and soil fertility under paddy-sesame cropping system. Application of 100% NPK + secondary and micro-nutrients based on soil test (T7) showed significantly higher mean grain yield of paddy (4735 kg/ha) and sesame (460 kg/ha) and rice equivalent yield (5348 kg/ha) followed by application of 50% NPK + 50% N as Farmyard manure (FYM) + inorganic source of micronutrients as per soil test (T1). Whereas, application of 50% recommended dose of nitrogen (RDN) through FYM + bio-fertilizers for N + Recommended dose of phosphorus (RDP) through rock phosphate + phosphorus solubalizing bacteria (PSB) showed significantly least mean grain yield of paddy (3209 kg/ha) and sesame (314 kg/ha) and rice equivalent yield (3628 kg/ha). Further, among organic treatments (T2 to T6), higher mean grain yield of paddy (3834 kg/ha), sesame (326 kg/ha) and rice equivalent yield (4269 kg/ha) as compared to other treatments was recorded following the application of one third of RDN through FYM + one third of RDN through vermicompost + one third of RDN through neem cake + bio-fertilizers containing N and P carriers (T6). Whereas, higher nutrient status with respect to major and micronutrients and the improved soil fertility status was recorded in organic treatment plots. The application of nutrients through organic sources would improve the soil fertility status under paddy-sesame cropping system.

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