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Detection of small amount of mineral or minerals which may otherwise be obscured by the more abundant or easily detected minerals is possible if H» analysis of various size fractions of clay rather ... Read More
The effects on irrigated wheat of N fertilizer applications as a single or two~~ split doses were compared at the farmers' field in NWFP. Three levels ofN viz. 40, SO and 120 kg A' ha1 were applied to ... Read More
Mineralogical composition of clay fraction may give an indication of the parent material, the soil has developed on, and also the different minerals these parent materials are likely to contribute to ... Read More
Lahore city waste was added @ 300 M g fur' to a silt loam (Satghara series, Typic Halorthides) soil to study its effect with time on soil organic matter, extractable Phosphorus (P) and potassium (K) u ... Read More
Foliar symptoms of salt injury resembling potassium ( K ) deficiency in mango orchards, irrigated with underground water, are very common along Batinah Coast of Oman.Twenty four soil, water and plant ... Read More
A saline-sodic sandy clay loam field (EG = 24.3-32.3 dS m', SAR = 56.6-77.5, pH, = 8.0-8.4 for the upper 15 cm soil depth) under rice-wheat crop rotation was put to reclamation by applying drainage wa ... Read More
Thirty eight isolates of plant growth-promoting rhizobacteria (PGPR) isolated from Faisalabad soils were screened on the basis of their ability to produce auxins (indole-3-acetic-equivalents) in vitro ... Read More
The DRIS approach utilizes nutrient interrelationships to determine nutrients that are most limiting to a specific goal e.g. yield. In present study, nutrient ratios of the high yielding treatment of ... Read More
Ftve rates of N (0,62, 124, 185 and 247 kg ha1 ), four of PiOs (0,74,148 and 222 kg ha1 ) and three of K2O (0,74 and 148 kg ha1 ) were tried at 40 locations in Punjab during Kharif 1990 through 1992 i ... Read More
For optimum growth, plant requirement of sulphur are as high as of phosphorus. Due to peculiar soil and climate conditions, addition of phosphorus to PliUfjtiil soils is inevitable. Similarly, availab ... Read More
A field study to determine the NPK fertilizer utilization efficiency in maize (Zea mays L.) cv. Sultan was carried out under barani conditions of Chakwal during 1992 and 1993. Seven different fertiliz ... Read More
The study was undertaken with an objective to improve the indigenous phosphorus (P) recommendation system by the inclusion of soil test values and P- fixation tendencies of a specific site. To assess ... Read More
Barani areas crop yields are mainly constrained by factors like low and erratic rainfalls, severe soil erosion, improper land conditions and inappropriate soil and crop management practices. These con ... Read More
The study to determine the effect of sunflower and summer legumes in pure stand and in intercropping systems on soil moisture and fertility status carried out at University of Arid Agriculture, Rawalp ... Read More
A field experiment was conducted on a loamy clay soil during 1988-89 in order to determine the optimum level of fertilizer for improved wheat variety 'Pirsabak-85' under the arid conditions of Dera Is ... Read More
Pumping tests are used for the estimation of the hydraulic parameters of the aquifer. Conventional methods - such as Theis & Cooper-Jacob - that have been developed based on the assumption of homogene ... Read More
Soil, water and plant leaf samples were collected for irrigated potatoes growing on 21 farms in Barka area. Soils on all the farms belonged to Entisols except one Aridisols. The soils were coarse text ... Read More
The study was conducted on clay loam soil in green house. Organic manure, Aquasorb and Terrasorb were mixed into the soil @ 20 g 5 kg'. IMM flumiJiW) was sown as a test crop. Terrasorb application sig ... Read More
Rates ofN uptake by wheat (Triticum aestivum L., cv. Mexi-Pak-65) from NHS and NOf forms applied as ammonium nitrate selectively labelled with 1SN were measured in a field experiment. The dry matter a ... Read More
Growth and nodulation of Banki and ICGS-44 varieties of groundnut was studied on Shujabad loam (typic Camborthid) in a greenhouse pot experiment. The groundnut varieties were inoculated with indigenou ... Read More
An experiment was designed with two rice lines grown at 0, 50 and 75 mol m~ 3 salinity for exploring the factors controlling sterility/grain filling status,and to sort out the causes of damage at pani ... Read More
A field experiment was conducted to study the effect of nitrogen application on the nitrogen content of Sesbania bispinosa (dhancha). Six levels of nitrogen (Ti-Te; 0,10,20,30,40 and 50 kg ha1 ), in t ... Read More
The identification of clay minerals is difficult and often becomes complicated in case of kaolinite where 0.72 nm peak of kaolinite is obscured by a strong second order (002) peak of Fe-rich chlorite ... Read More
In a field experiment, nitrogen application ® 50, 75, 100 and 125 Kg ha' to sunflower (Pioneer 6480) gave higher (P<0.05) grain yield of 2.27, 2.39, 2.55 and 2.581 ha' respectively over control. Simil ... Read More
A pot experiment was conducted to assess the role of zinc in improving the salt tolerance in rice. Two varieties i.e. NIAB-6 and Basmati-370 were grown to compare. Three salinity levels i.e. control, ... Read More
Fifty three composite samples each collected at 0-15, 16-30 and 31-45 cm depth for Balkasar, Guliana, Kahuta, Qutbal, Qazian and Rajar series were analysed for soluble,exchangeable, nonexchangeable an ... Read More