SOIL PROPERTIES IN RICE SOILS

A study was under taken to assess the available (DTPA-extractable) zinc and iron in soils under rice based cropping system in Chamarajanagar district, Karnataka, India. Results of the study indicated that the soils were sandy clay loam in texture with neutral to alkaline pH (6.6 to 9.2).

Distributions of different zinc (Zn) forms in seven blocks of rice-wheat growing soils of Jammu region were studied. Understanding the Zn distribution in soil is important for efficient and effective management of the fertilizers recourses and to achieve a higher productivity rate. Sequential extrac[r]

Proper assessment of available micronutrient status in soil is very important as their deficiency and toxicity range in soil is quite narrow. Deficiency of micronutrient may be due to low total content of elements caused by soil factors reducing their availability to plants. The present study was ta[r]

This paper aims to present a comprehensive review of the numerous investigations on rice husk ash and its utilization in soil improvement. Based on the literature review, there are some findings as follows: burning rice husk ash in incinerator under a controlled temperature of 500÷8000C and time of[r]

Benefit/cost analysis of these_ _practices demonstrated the benefits of using SCAMP to assess soil constraints to productivity._ TRANG 2 _CARD 009/06 VIE – Capacity building in soils ass[r]

The restoration of soil quality through carbon sequestration is major concern for tropical soils. The accelerated decomposition of soil organic carbon due to agriculture resulting in loss of carbon to the atmosphere and its contribution to the greenhouse effect is a serious global problem.

Soil properties are sensitive to changes in the soil environment as influenced by vegetation, climate and inputs and losses of biomass and nutrients. Thus, the cropping systems with different management practices are likely to influence soil properties. Grid based soil survey was conducted in Mudhol[r]

There appear to be two main reasons why a practical sci- ence has not developed for unsaturated soils (Fredlund, 1979). First, there has been the lack of an appropriate sci- ence with a theoretical base. This commences with a lack of appreciation of the engineering problems and[r]

Cassava (Manihot esculenta Crantz) is a perennial shrub and a tuberous root crop well adapted to poor soils and is relatively tolerant to drought, the crop is usually grown under marginal soil and climatic conditions and often with very limited inputs of fertilizers and pesticides. In India, cassava[r]

A study was conducted to evaluate “Effect of land configuration and bio-organic on exchangeable cations in soil after harvest of chickpea (Cicer arietinum L.) under costal salt affected soils” during rabi seasons of 2014-15 and 2015-16 at Coastal Soil Salinity Research Station, NAU, Danti.

Sulphur (S) deficiency is widespread in Indian soils and is been emerging as a major limitation for enhancing productivity. Soils of Karnataka are largely deficient in sulphur (52 %). In this context, survey work was carried out during the year 2017 to know the status of sulphur and its forms and di[r]

The TOC was higher in soils under 20-yr agro-forestry, compared the soils under relatively younger agro-forestry system. Total organic C stocks in surface soil under 20-yr agro-forestry system were significantly higher, although TOC sto[r]

The present investigation entitled “Fertility status of irrigated soils of Jhotwara panchayat samiti of Jaipur district “was carried out during 2010-11. The soils were pH neutral to alkaline (pH 7.2–8.5) in reaction having electrical conductivity (EC) value in surface soil (0.53–2.51 dSm-1 ). The da[r]

This experiment was carried out to investigate the stabilizing influence organic amendments on soil reaction and micronutrient availability. Three different soil types (viz. acid, neutral and sodic soil) were considered for our experiment to represent soils of the whole country. Soils were incubated[r]

5.2 MATERIALS AND METHODS 5.2.1 THE CONTAMINATED SITES Two rural soils, Chunghsing clayey soil including sites A and B and Chaouta sandy soil including sites C and D, were selected from [r]

soil before treating soil samples by the solutions containing P lead to reduction of Q max values from 19-76%.
3) The ability to release P inversely correlated very closely with P adsorption capacities of soils, the contents of allumium and iron amorphous, clay content[r]

Mycorrhizal fungi occur in most of the soils and colonize roots of many plant species. A greenhouse experiment was carried out to study the efficiency of Arbuscular Mycorrhizal fungi indigenous to Arunachal Pradesh in uptaking plant nutrients for the Piper mullesua plantlets at different soil condit[r]

This study presents a series of soil concrete mix that is made of excavated soils, cement, lime and hemp fibers. An experimental program was carried out on the testing samples of soil concrete with different proportions of clayey soil and hemp fibers.

An investigation was conducted in intensive rice growing block of Viruthachalam, Cuddalore district of Tamil Nadu. The major objectives were to assess the soil physico- chemical and biological quality parameters in rice soils and to compare soil quality indexing methods viz., Principal component ana[r]

Keeping this in view, present study was undertaken to assess the impact of sludge addition on important soil biological properties under rice cultivation.