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Home > Studies in Nursery Management and Application of Boron and Zinc in Fine Rice.

Studies in Nursery Management and Application of Boron and Zinc in Fine Rice.

Thesis Info

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Author

Sarwar, Naeem

Program

PhD

Institute

University of Agriculture

City

Faisalabad

Province

Punjab

Country

Pakistan

Thesis Completing Year

2011

Thesis Completion Status

Completed

Subject

Natural Sciences

Language

English

Link

http://prr.hec.gov.pk/jspui/handle/123456789/1587

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676727253852

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Production of vigorous seedlings and transplanting at proper age is a primary feature to get good paddy yield. Due to the shrinkage of world water resources rice cultivation is in shift from flooded to aerobic condition. This shift may alter the soil condition that can cause the problem of boron and zinc uptake, which leads toward reduction in final yield. Two field experiments were conducted during 2008 and 2009 growing seasons at Agronomic Research Farm, University of Agriculture, Faisalabad (310-25’N,730-09’E), Pakistan. The first one studied the seeding densities, nitrogen fertilization rate and seedling age in the rice nursery that is used for transplanting. Such treatments were evaluated in term of seedling vigor, plant growth, yield and yield attributes. The study revealed that fertilized seedlings older than 10 days and grown with low seeding density at nursery-bed, significantly improved seedling vigor. Maximum paddy yield (3.7 t/ha) was observed with transplanting youngest seedlings (10-days older) but transplanting of 20-days older fertilized seedlings grown at low seeding densities resulted in almost similar yield (3.6 t/ha) with younger. Older seedlings leads to reduced yield and the lowest yield (2 t/ha) was observed after transplanting unfertilized 40- days older seedlings grown at high seeding density. The best benefit cost ratio (BCR) was observed with S1 (1.59) followed by S2 (1.40) while in nursery management, fertilized seedlings grown with low seeding density found the highest BCR (1.53) in year 2008. The second experiment investigated the nutrition effect of boron and zinc in different rice cultures. Boron and zinc are supplementary nutrients were used as basal fertilizers in the rice fields that had different water management. Results showed that the rice crop significantly reduced yield (42 %) and impair quality when it was subjected to grow in aerobic condition without nutrients application. However, nutrients application in crop grown with periodic flooding and drying improved yield (4.81 t/ha) and quality as compared with aerobic culture (2.89 t/ha) and performed as good as the normal flooded rice. Maximum paddy yield (5.02 t/ha) was recorded in flooded rice with the combined application of boron and zinc which was statistically similar with treatment of periodic flooding and drying. In addition to this the best BCR was achieved with field under periodic flooding and drying (1.89) followed by flooded rice (1.75) and the minimum BCR (1.39) was found in aerobic rice culture . Fertilizer application revealed that maximum BCR (2.05) was recorded with micronutrients application as compared to control during 2008. These findings sustenance the young seedling components of System of Rice Intensification and illustrate that making a minor additional investment in raising a healthy and vigorous seedling in nursery seed-bed, farmers can harvest a reasonable yield benefits. Results also demonstrated that introduction of aerobic rice cultivation for fine rice can increase the deficiency problem of micronutrients (B & Zn) in calcareous soils.
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۱۹۔ کتاب اور محبت

کتاب اور محبت

اچانک بند دروازہ کھلا

تاریکی میں ٹھوکریں کھاتی دو آنکھیں داخل ہوئیں

تاریکی کو ہٹاتے ہوئے دو ہاتھ کھڑکی تک پہنچے

زنگ آلود کھڑکی وا ہوئی تو اندھیرا باہر بھاگنے لگا

قدم پڑتے ہی فرش نے انگڑائی لی

مدھر چاپ سنتے ہی مکڑیاں جھرجھری لے کر جاگیں

پائوں سے لپٹتی دھول نے استقبال کیا

پراگندہ کمرے میں عجیب سراسیمگی طاری تھی

تمام الماریاں کتابوں سمیت سجدہ ریز تھیں

A Study of Pakistan’s Various Reform Policies Regarding Islamic Seminaries

ABSTRACT: Pakistan is an Islamic country based on Islamic ideology where society has an emotional attachment with religion, hence an expanded network of Dini Modaris [traditional institutions of Islamic learning] is prevailing in urban as well as in rural areas of the country; where the teaching- learning process remains continue in a traditional way. While on other hand, at the same time, modern education system is followed by government and non-government run institutions. These two different systems with different ideologies and pedagogical techniques have produced two different social classes with different world views about the way Pakistan should be managed. This situation of education system is worrying. In an Islamic welfare state, ideally speaking, serious efforts are required to be done in order to eliminate the gulf between the two systems entirely having antagonistic approaches. In such perspective, this paper is aimed to study the efforts and practical steps, taken for the reforms and development of Dini Modaris by various governments of Pakistan as per their policies.

Study on the Effect of Dehydration Techniques on the Nutritional Quality of Mango Mangifera Indica L. Products

The study was designed to determine the effect of various dehydration techniques on the nutritional quality of mango (Mangifera indica L.) products. In the first phase of the study, nutritional characteristics of fresh immature mango of different varieties were determined. The results revealed that maximum TSS, protein, non-reducing sugar, K and Cu were recorded in variety Langra. Whereas, maximum moisture, ash, fat, total sugar, reducing sugar and Mn were observed in variety Sindhri, however, variety Chaunsa showed higher vitamin C, Mg and Cr content. It was further observed that variety Desi was rich in minerals such as Na, Ca, Zn and Fe with maximum acidity. In the second phase of the study mango powder was prepared from different mango varieties using different drying techniques. The results of mango powder prepared with-peel showed that variety Chaunsa had significantly higher moisture and vitamin C content, whereas TSS, total sugar, reducing sugar, Ca, K, Mg, Cu were higher in without peel powder in variety Chaunsa than other varieties. Among the drying methods, maximum moisture was retained in wooden glass drying method (12.88%), whereas, maximum TSS, ash, protein, vitamin C and non-reducing sugar were observed in mango powder dried under cabinet drying method. Moreover, the majority of the minerals were found in maximum quantity in mango powder dried under wooden glass drying method. During the third phase of the study the unripe and ripened mangoes of different varieties were picked from various tree positions viz. top, middle and bottom. The results revealed that during ripening period the TSS was increased in all the varieties. It was further observed that maximum moisture (85.28%) and total sugar (29.36%) was observed in ripened Chaunsa mangoes. The higher Vitamin C content (26.34mg 100g-1) was found in ripened Langra mangoes than other varieties. The unripe variety Desi had the highest acidity (0.47%) as compared to other unripe and ripened mango varieties. It was also observed that minerals were significantly higher in unripe than ripened mangoes, Na, Ca and Zn were higher in variety Desi, Mg, Fe, Cr and Mn were maximum in variety Chaunsa, whereas, variety Sindhri and Langra were rich in K and Cu, respectively. Among the mangoes picked from different tree positions, moisture, TSS, reducing sugar, non-reducing sugar, ash, acidity, vitamin C, Na, Ca, Fe, Mg, Cr and Mn were higher in mangoes picked from top tree position as compared to middle and bottom positions. xv In the last phase of the study, the slices were prepared from mangoes of different varieties obtained from top, middle and bottom tree positions using different drying methods. It was reflected that the mango slices of variety Chaunsa prepared from top tree position mangoes, had the highest pH, ash, TSS and vitamin C content. It was further observed that moisture content was highest (12.88%) in slices of mangoes of variety Sindhri obtained from top tree position and dried under wooden glass drying method. However, total sugar, reducing and non-reducing sugars were significantly higher in slices of variety Chaunsa obtained from top tree position, whereas, Ca content of variety Desi was higher in cabinet drying method in slices prepared from top tree position than all other varieties. Cabinet drying method resulted in higher quantities of K (819.60 mg kg-1), Mg (78.64 mg kg-1), Zn (2.62 mg kg-1), Fe (6.86 mg kg-1), Cu (5.92 mg kg-1), Cr (1.02 mg kg-1) and Mn (3.22 mg kg-1) as compared to open sun drying and wooden glass drying methods. The sensory evaluation of mango powder prepared under cabinet dehydration method proved to be better from variety Desi without peel than other varieties investigated, while mango slices of variety Chaunsa prepared from top tree position under cabinet dehydration resulted in better quality than other varieties and drying methods. It was concluded from the present study that cabinet dehydration method proved to be better in the preparation of mango powder and slices than other two drying methods. The study further confirmed that mango powder and slices prepared from variety Chaunsa were superior in quality and all other nutritional characteristics than other varieties. Similarly, mango slices prepared from top tree position were better in quality than those made from middle and bottom tree positions.